sweet relic Jul 5, 2020, 4:33 PM

#

so i created a file here /var/www/html/data.csv

#

just to test

#

how do I load it

#

putting the filename at the end of the url right?

tiny lava Jul 5, 2020, 4:36 PM

#

yes

sweet relic Jul 5, 2020, 4:39 PM

#

okay running localhost/data.csv downloaded the CSV

#

but i'd need to load into my JS code

tiny lava Jul 5, 2020, 4:40 PM

#

Well everything from your webserver gets "downloaded"

#

Its just what your browser decides to do with them

#

if you load them from js the thing that is actually being sent is the content of the csv

#

if you used wget or curl before this might make more sense

#

the webserver simply serves files, it doesn't tell the client to download or display them

#

Actually I'm wrong lmao

#

its a http header

#

but that shouldn't matter for your js

sweet relic Jul 5, 2020, 4:51 PM

#

yeah but what does 'serving' really mean then?

tiny lava Jul 5, 2020, 4:52 PM

#

It sends some headers and then the content of the file over the connection

sweet relic Jul 5, 2020, 4:53 PM

#

but then isn't it different than merely 'downloading' a file?

tiny lava Jul 5, 2020, 4:54 PM

#

like how

#

The computer on the other side gets the content of the file either way, its just what they do with it

sweet relic Jul 5, 2020, 4:55 PM

#

i was thinking i'd see a raw csv similar to what I see in gist

tiny lava Jul 5, 2020, 4:55 PM

#

yeah thats because they sent a different HTTP header than you

#

but it shouldn't matter for loading it from JS

#

you'll get the same content

sweet relic Jul 5, 2020, 5:08 PM

#

not sure how do I load it from JS

tiny lava Jul 5, 2020, 5:09 PM

#

how are you getting it from gist?

sweet relic Jul 5, 2020, 5:10 PM

#

i have its URL stored. so like:

var url = <gist_url>
var request = new XMLHttpRequest();
          request.open("GET", url, false);
          request.send(null);```

tiny lava Jul 5, 2020, 5:11 PM

#

yep pretty sure that will work exactly the same with the new url

sweet relic Jul 5, 2020, 7:54 PM

#

yeah that seemed to work! thanks

#

🙂

#

just playing around with it further...

sweet relic Jul 5, 2020, 8:12 PM

#

do you know how to call a function only when a certain condition is true?

#

var myVar = setInterval(function() {
                       updateData();
                     }, 2000);
        }

calls updateData() every 2s. what if I want to call it only when a specific state changes

#

just to give you a context, i'd need to call updateData() when there's new data in the csv file which i'm checking by comparing the file length

tiny lava Jul 5, 2020, 8:21 PM

#

I don't know javascript

#

but couldn't you just check if theres new data in the updateData function?

#

or call another function that checks that and runs updateData if so

obtuse depot Jul 5, 2020, 8:24 PM

#

why not call updateData() when you check the file?

sweet relic Jul 5, 2020, 8:25 PM

#

my bad. wrong channel

#

why not call updateData() when you check the file?
i need to separate out the code but currently i'm checking inside updateData() but logically it won't make any diff

obtuse depot Jul 5, 2020, 8:26 PM

#

what about using signals?

sweet relic Jul 5, 2020, 8:26 PM

#

cause instead of calling updateData(), i'd be reading in the file size every 2s instead

#

never used signals

#

you mean pattern?

obtuse depot Jul 5, 2020, 8:30 PM

#

I'm sorry, I'm not quite sure what you're doing, or why you can't fire off an updateData inside your code that checks for file changes

#

if you need to decouple it, register it as a callback instead

tiny lava Jul 5, 2020, 8:31 PM

#

You could have a backend that tells the javascript when the file size changes

obtuse depot Jul 5, 2020, 8:31 PM

#

this might also be an option if you want further decoupling: https://developer.mozilla.org/en-US/docs/Web/Guide/Events/Creating_and_triggering_events

MDN Web Docs

Creating and triggering events

This article demonstrates how to create and dispatch DOM events. Such events are commonly called synthetic events, as opposed to the events fired by the browser itself.

#

oh, are you saying your python watches the file, and has to communicate with Javascript?

#

there are a few interesting ways to do that python->javascript communication, but ultimately you're either going to be periodically polling HTTP, or you're going to establish a websocket connection (e.g. python/tornado server) and push the notification for change

#

but I'm kind of lost here, not sure what you're trying to do exactly

sweet relic Jul 5, 2020, 8:38 PM

#

no i'm not using python. i have a C code that appends to a csv and JS to read off of it and plot it out

obtuse depot Jul 5, 2020, 8:39 PM

#

node.js then?

#

are you using fs.watchFile()?

tiny lava Jul 5, 2020, 8:40 PM

#

not node, he is just serving it from a webserver

obtuse depot Jul 5, 2020, 8:40 PM

#

ok... so what's watching the file?

tiny lava Jul 5, 2020, 8:40 PM

#

nothing

#

thats the problem he is trying to solve

obtuse depot Jul 5, 2020, 8:40 PM

#

how does that file get into JS?

tiny lava Jul 5, 2020, 8:40 PM

#

an http request

obtuse depot Jul 5, 2020, 8:40 PM

#

browser uploading file to JS?

#

upload dialog?

tiny lava Jul 5, 2020, 8:41 PM

#

not sure what you mean

#

var url = <gist_url>
var request = new XMLHttpRequest();
          request.open("GET", url, false);
          request.send(null);

#

this is what he is doing

obtuse depot Jul 5, 2020, 8:41 PM

#

ok, this does an HTTP request to a url

tiny lava Jul 5, 2020, 8:41 PM

#

yes

obtuse depot Jul 5, 2020, 8:41 PM

#

how do we get from a file to here?

#

webserver serving CSV file as static content?

tiny lava Jul 5, 2020, 8:42 PM

#

the file is in his web root

obtuse depot Jul 5, 2020, 8:42 PM

#

ok, I'm going to just assume there's a webserver installed and it's serving files from there and you can point a browser at the URL and download the file

#

in that case you have no server-side file watching, therefore your javascript is going to have to poll the file. You either are going to have to GET the whole file every time, or depending on server you may be able to do a HEAD request to get the file size instead to save on having to fetch the whole thing

#

once you get the size, either because you grabbed the whole file again, or because you got it from the HEAD request, if the size is different from last time, run your updateData()

#

if you want to abstract updateData, from whatever's doing the Ajax, you can either do that having an object that's doing the ajax polling have a method that you can use to register the updateData function as a callback to it

#

or if you want more decoupling, you could use Events, and have the Ajax object emit an event, that the updateData is registered to

#

up to you really

#

also consider the Fetch API rather than old-school Ajax

sweet relic Jul 5, 2020, 8:56 PM

#

so the syntax for a head request isrequest.open("HEAD", url);? where's the file size stored?

#

and which Fetch API are you referring to? sorry i'm not too into JS. just learning a bit on the side to get this part of the project done

obtuse depot Jul 5, 2020, 8:59 PM

#

Fetch API is a newer interface for making HTTP requests, and supports promises, it's much nicer to use than XMLHttpRequest: https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch

MDN Web Docs

Using Fetch

This kind of functionality was previously achieved using XMLHttpRequest. Fetch provides a better alternative that can be easily used by other technologies such as Service Workers. Fetch also provides a single logical place to define other HTTP-related concepts such as CORS and...

#

before you commit to going with HEAD, I suggest you poke it with an HTTP tool, and see what it gives back. If it doesn't give back any data like file sizes or last update time that you can use to detect changes, you're going to have to go back to doing a GET and then checking the returned filesize

#

(HTTP tool like Postman)

sweet relic Jul 5, 2020, 9:07 PM

#

but didn't we settle on that HEAD is used to give you a specific info while GET gives you the entire content?

obtuse depot Jul 5, 2020, 9:07 PM

#

only if the server provides that info, and not all servers do. so I suggest you check first before going with that option

sweet relic Jul 5, 2020, 9:08 PM

#

how do I check with an HTTP tool? it's a separate toolkit?

obtuse depot Jul 5, 2020, 9:09 PM

#

there are lots of programs that frontend devs use, a popular one is Postman

#

for example:

📎 unknown.png

#

here, I quickly spun up a python server (good old python -m http.server since we're in a Python discord), and then poked a file with a HEAD request. the return headers can be seen to the right, note that it does give me: Content-Length which is the filesize in bytes; and Last-Modified key which matches the file I have on disk:

📎 unknown.png

#

(aside from timezones)

sweet relic Jul 5, 2020, 9:16 PM

#

i'm using this server on an RPI and the only supported OS i'm seeing for postman is mac/windows

obtuse depot Jul 5, 2020, 9:17 PM

#

Postman is a dev tool, use it to check your HTTP endpoints

#

you are just using it to figure out what a particular request is going to return. are you actually developing on an RPi?

#

I'm literally just asking you to use it or a related tool to confirm that your web server will return you file siz (content-length) headers for your file. It should but it's best to be sure. Do this before committing to using HEAD as a way to check for file changes

#

I'm not asking you to incorporate Postman or anything into your actual program, it is a development tool

sweet relic Jul 5, 2020, 9:20 PM

#

i thought you mentioned postman in response to my question of going about checking the file size

obtuse depot Jul 5, 2020, 9:21 PM

#

get postman or related tool.
use postman to confirm to yourself that your server is providing a content-length or last-modified header that you can use to detect file changes
close postman
write your javascript code to make this HEAD request and extract the content-length/last-modified header to use as part of your ap
the rest

sweet relic Jul 5, 2020, 9:22 PM

#

yeah that's what i understood, and that's what i'm doing right now and like i said i couldn't find a linux compatible OS version of postman

obtuse depot Jul 5, 2020, 9:23 PM

#

Postman is on Linux

sweet relic Jul 5, 2020, 9:33 PM

#

looks like i can't open the executable

obtuse depot Jul 5, 2020, 9:47 PM

#

there's several chrome extensions as well

sweet relic Jul 5, 2020, 9:57 PM

#

📎 Screen_Shot_2020-07-05_at_5.57.09_PM.png

obtuse depot Jul 5, 2020, 9:59 PM

#

nice

#

so yeah, it's giving you countent-length of only 42 bytes, check that this changes when you update the CSV file

#

if it does, you're all good to use file size for change detection through HEAD request

#

BUT also consider using the last-modified timestamp (or both!) as well

sweet relic Jul 5, 2020, 10:00 PM

#

yeah but how does one access any of these headers?

#

getResponseHeader() apparently

#

so i'd still have to use the GET request to obtain the contents of the file once the condition is true anyways right

obtuse depot Jul 5, 2020, 10:20 PM

#

yes

#

now, it should be pointed out that you could just GET all the time if you're not worried about latency of file transfer speeds, which would be the case if everything's local, but doing a HEAD for polling for file changes just feels neater

#

and since you're using fetch with promises, you can chain promises (or await) nicely

sweet relic Jul 5, 2020, 10:47 PM

#

yeah I agree

#

but for some reason the HEAD request doesn't seem to take into account the latest changes in the csv

#

function readFileSize() {
  var request = new XMLHttpRequest();
  request.open("HEAD", url, false);
  request.send(null);
  len = request.getResponseHeader("content-length"); //   remains the same even tho the actual size has increased
}
  setInterval(function() {
            readFileSize();
          }, 500);```

#

actually now it seems to work. wasn't updating for some reason before

sweet relic Jul 5, 2020, 11:35 PM

#

does anyone know why I don't have the permissions to write to /var/www/html?

#

even running chmod 766 -R /var/www/html doesn't help

obtuse depot Jul 5, 2020, 11:42 PM

#

is your FS mounted read-only?

#

sometimes due to fsck or other boot issues, booting falls back to mounting root as read only

sweet relic Jul 5, 2020, 11:46 PM

#

i can modify files in other dirs

#

just can't seem to in /var/www/html

obtuse depot Jul 5, 2020, 11:48 PM

#

weird, can you do it while sudo?

sweet relic Jul 5, 2020, 11:49 PM

#

do what? run the chmod command?

obtuse depot Jul 5, 2020, 11:49 PM

#

touch files in there

sweet relic Jul 5, 2020, 11:51 PM

#

are you saying if i should create files using touch command or?

obtuse depot Jul 5, 2020, 11:53 PM

#

something like that

sweet relic Jul 5, 2020, 11:55 PM

#

i observed that i didnt have issues modifying via command line. but using the GUI is what seems to create an issue

icy flicker Jul 6, 2020, 5:59 AM

#

#help-avocado

dreamy wing Jul 6, 2020, 2:55 PM

#

Any video editors for linux like Sony Vegas?

plush sparrow Jul 7, 2020, 12:52 AM

#

KDENLive

#

or just use ffmpeg directly smugpepe

mossy wharf Jul 7, 2020, 8:21 PM

#

How should I start

#

Unix

obtuse depot Jul 7, 2020, 8:22 PM

#

usually the power button does it

urban axle Jul 7, 2020, 8:28 PM

#

tsk tsk, or you can use jumper cables if you're running Debian :p

#

@mossy wharf are you getting into Unix?

silent vector Jul 7, 2020, 8:42 PM

#

@mossy wharf Just burn ubuntu in an usb

#

and boot from it

urban axle Jul 7, 2020, 8:44 PM

#

always a good suggestion for starting; you don't want to compile Linux from scratch until after a good couple of weeks

silent vector Jul 7, 2020, 8:44 PM

#

If you wanna go hardcore

#

http://www.linuxfromscratch.org/

#

LFS is the way

#

@urban axle Wait have you done this before ??

urban axle Jul 7, 2020, 8:46 PM

#

fool. foolish work. we must start from the basic silicon chip and go upward

#

@silent vector noooo

#

compiling Firefox was annoying enough

silent vector Jul 7, 2020, 8:46 PM

#

@urban axle Yeah true

#

BUt its pretty cool though

#

If you want to get to the neety gritty

urban axle Jul 7, 2020, 8:47 PM

#

I just poke at /etc/passwd for fun sometimes

silent vector Jul 7, 2020, 8:47 PM

#

Yeah dont do that

urban axle Jul 7, 2020, 8:47 PM

#

it's clean and easy and I can stop anyti

#

oh no the ghost of sudoers is haunting me now someone get a broom

silent vector Jul 7, 2020, 8:49 PM

#

try ''' dd bs=4M if=/home/<your_user>/<.iso> of=/dev/sda '''

#

Thats a fun command

#

But seriously

#

DOnt try

urban axle Jul 7, 2020, 8:49 PM

#

I saw bs=4M and was already scared

silent vector Jul 7, 2020, 8:50 PM

#

You know what it does

#

??

urban axle Jul 7, 2020, 8:52 PM

#

HEY

obtuse depot Jul 7, 2020, 8:52 PM

#

this is called "can I reinstall my system from itself?"

urban axle Jul 7, 2020, 8:52 PM

#

no resetting

obtuse depot Jul 7, 2020, 8:52 PM

#

I wonder if you can achieve this without hard crashing....

silent vector Jul 7, 2020, 8:52 PM

#

@obtuse depot Ma man

urban axle Jul 7, 2020, 8:52 PM

#

just hotpatch each and every file and restart each service

obtuse depot Jul 7, 2020, 8:52 PM

#

restart services just ahead of the DD write

urban axle Jul 7, 2020, 8:53 PM

#

initd might be hard but I'm sure you can get a couple of magnets to do the trick

obtuse depot Jul 7, 2020, 8:54 PM

#

you know if you're fast enough you can probably just do a hard drive platter swap while it's spinning

urban axle Jul 7, 2020, 8:57 PM

#

something something xkcd butterfly :p

main olive Jul 8, 2020, 8:00 AM

#

am I able to make my self a script where it would make a screen and go into it and run something and go out and make another one and do the steps over and over? for linux

main olive Jul 8, 2020, 8:46 AM

#

"make a screen"?

#

@main olive

round shuttle Jul 8, 2020, 12:24 PM

#

If you mean "open a window", yeah, it's possible, at in Python and/or C (as for bash, I doubt it). As to wether you're able to do it, I don't know you, so I can't tell 😉. I have never done this yet, so I won't be much help, but it's definitely possible.

mossy wharf Jul 8, 2020, 12:36 PM

#

@mossy wharf are you getting into Unix?
@urban axle yes

urban axle Jul 8, 2020, 12:42 PM

#

@mossy wharf definitely go for Ubuntu, then. the UI might not be your thing but the internals are set up wonderfully easy and the package manager is pretty wide

main olive Jul 8, 2020, 2:30 PM

#

I made an install.sh file, but the bash command to install gradle out of the other commands didn't work?
Does anybody know what could have gone wrong?
Is this a dependency issue?
Also should I use apt-get update just once in the starting and apt-get upgrade just once in the end?

obtuse depot Jul 8, 2020, 3:10 PM

#

check line endings

#

it's a common issue, sometimes windows-style line endings crop in and the script doesn't work but it's non-obvious

#

but other than that, yea check your dependencies, check your env vars, and all that

formal schooner Jul 8, 2020, 6:07 PM

#

@main olive can you clarify what "didn't work" means?

#

i've had all-in-one install scripts like that. and i did

apt-get update
apt-get upgrade
# install all your stuff
apt-get upgrade

#

worst case is that it tells you there's nothing to upgrade the 2nd time

tiny lava Jul 8, 2020, 7:02 PM

#

I would think the second one always does nothing

#

first one upgrades all your currently installed packages, and then all the new ones are installed with their most current versions

formal schooner Jul 8, 2020, 7:09 PM

#

yeah

#

im just never sure

#

knowing how squirrely dependency resolution can be

boreal falcon Jul 8, 2020, 7:27 PM

#

@main olive out of curiosity, how did you try to install it ? I guess it's not available in package manager

main olive Jul 8, 2020, 8:06 PM

#

gradle is installed using sdk right now, so u need to install sdk first

#

yes it isn't like apt-get install gradle

#

so it's a sdk manager.

mossy wharf Jul 8, 2020, 8:12 PM

#

Ok I installed ubuntu

#

GWllentThinkPika

#

Wats next to learn in unix

#

How should I start after that @urban axle

worldly bridge Jul 8, 2020, 8:22 PM

#

:0

boreal falcon Jul 8, 2020, 8:25 PM

#

@main olive well the error messages usually tell exactly what went wrong

main olive Jul 8, 2020, 8:25 PM

#

there is no error message, it was just not installed

#

also, u don't have to ping me, I am reading what you have to say to me 😇

urban axle Jul 8, 2020, 8:31 PM

#

How should I start after that @urban axle
@mossy wharf Well, what do you eant to do?

#

I would recommend messing with the terminal

#

Try GNU tools included

#

less, vi, nano, tee…

#

there are many many tools to build data together!

#

and pipes help you put them from one to the other

#

a rather basic example might be cat filepath | hello would take the contents of filepath and pipe it as input to hello

boreal falcon Jul 8, 2020, 8:34 PM

#

then there is a manual way, which should work

#

actually never tried installing it with sdk manager

main olive Jul 8, 2020, 8:37 PM

#

what manual way?

boreal falcon Jul 8, 2020, 8:39 PM

#

need to download binaries, then set up environment variables

main olive Jul 8, 2020, 8:39 PM

#

oh yeh

mossy wharf Jul 8, 2020, 8:52 PM

#

O ok

silent vector Jul 8, 2020, 9:12 PM

#

@mossy wharf Install gentoo

#

So you get the real linux experience

plush sparrow Jul 8, 2020, 10:34 PM

#

Any stage 3 lads? 🤔

mossy wharf Jul 9, 2020, 9:30 AM

#

Well i installed ubuntu maybe next tym will give it a try

#

GWllentThinkPika

round shuttle Jul 9, 2020, 9:32 AM

#

You could learn to dual-boot, as well
That's some fun !

main olive Jul 9, 2020, 11:08 AM

#

Are these necessary files in my root directory?

[shaen@xx /]$ ls -l | grep txt
-rw-r--r--   1 root root 23642 Jun  6 03:06 desktopfs-pkgs.txt
-rw-r--r--   1 root root  5037 Jun  6 03:04 rootfs-pkgs.txt

Aesthetically, I dont care for the length of the file names in my root where its nothing but short fnames that are fairly compactly viewed otherwise.

main olive Jul 9, 2020, 11:43 AM

#

you can delete those

#

also, why is your pc named after me

#

@main olive

#

lol. because I started with x and decided it didn't look long enough. Then I tried xxx and that made me feel like people would think it was porn. And then I realized your name is perfect, and I did note that it is your name when I chose to name it after you, but not intentionally. 😛

#

the main reason x doesnt work is because x refers to something else already

#

I was reading about the significance of /run/media as a replacement spot for auto mounted drives. Someone on stackoverflow said it was due to somethings called udisks performing tasks before it has access to something. So /media/ was moved to there which apparently came from /var/run where it was originally. Kind of weird.

#

What does udisks do differently than... mount and a fstab?

mossy wharf Jul 9, 2020, 12:20 PM

#

Why my is so slow while I copy things

#

In ubuntu

#

I'm new to this can anyone help

main olive Jul 9, 2020, 12:22 PM

#

Does anyone know the command to install python on linux debian

#

https://docs.python-guide.org/starting/install3/linux/ its a little bit complicated because to the nature of debian, it is not always entirely to the updated version that you need or want. The solution in the article involves adding something to your sources file. The time that I did it to get up to 3.7, I built python from source off github

Installing Python 3 on Linux — The Hitchhiker's Guide to Python

#

its possible that this is not still a problem, also.

#

The time i did it they only had 3.5

#

maybe even 4

#

I'm noticing that I have both a /root dir and a /home/root dir. Hrmm...

#

What is the meaning of this...

formal schooner Jul 9, 2020, 12:33 PM

#

imo just use pyenv

#

ignore all that junk

boreal falcon Jul 9, 2020, 12:47 PM

#

or just use the version that is preinstalled

main olive Jul 9, 2020, 12:52 PM

#

if you are on base debian, nothing is preinstalled.

#

Literally almost nothing.

#

The main reason I had to deal with it was I thought debian would be a good choice for my first server, and my first server needed python 3.7, because of the tech stack to run Django. But if you install from the source, it's not gonna be enough. For that reason I dont really start with debian anymore ha

#

[shaen@xx public]$ ls -l .. | grep public
drwxrwxr-x  2 root  public  4096 Jul  9 07:55 public
[shaen@xx public]$ groups
{REDACTED...} public
[shaen@xx public]$ touch test && ls -l | grep *test*
-rw-r--r-- 1 shaen shaen 0 Jul  9 07:56 test

How can I make it so that any file that goes into this public directory is automatically given the group of this directory, regardless of who makes it... it already gives the group sole access to write there.

#

I feel like there is probably a simpler way than some of the ways im imagining

formal schooner Jul 9, 2020, 1:02 PM

#

@main olive chmod g+s public

main olive Jul 9, 2020, 1:02 PM

#

hrmmm... Im not familiar with +s

#

let me see

formal schooner Jul 9, 2020, 1:02 PM

#

this is the "setGID bit"

main olive Jul 9, 2020, 1:03 PM

#

ty

main olive Jul 9, 2020, 2:18 PM

#

Do these look like reasonable [fstab] options here, assuming to the left are correct UUIDs? I didn't put the swap partition on there. I didnt seem like there was a need to. I'm not certain about the fsck value on the Windows device. And because ive never seen the effects of the default options im not really sure if those are what i want for my internal storage and externals. or not.

📎 unknown.png

#

I should have done this a long time ago on my old system lol. But I was too much of a newb when i started and then i never got around to it

#

the storage one works. Some is off about the hotplugable one. I'll figures it out.

#

It doesnt like that hotplug option i saw someone use but since i dont want it on auto anyway, hopefully it wont have trouble trying to boot. according to some random poster.

#

it otherwise work tho

silent vector Jul 9, 2020, 3:19 PM

#

@main olive The boot,root and home look fine

thin hawk Jul 9, 2020, 3:41 PM

#

Hey, how do I bootstrap my dotfiles(vim, polybar, i3, ncmcpp etc.)? I've heard about yaml, could you suggest me how do I acheive easier management of dotfiles?

#

I know it's off-topic, but any suggestions would be appreciated.

formal schooner Jul 9, 2020, 4:52 PM

#

that's an open question

#

there are a few solutions

#

some people use GNU Stow

#

some people write their own scripts

#

some people use a tool that i used to use called Dotbot

#

(incidentally written in python)

pulsar vapor Jul 10, 2020, 1:28 AM

#

Guys! What is the best method to watch a folder in unix for changes? I've heard "inotify" is one way of doing it, but I think I've heard of others too and want to use what's best. Thank you and sorry if this is a dumb question. :I

robust cave Jul 10, 2020, 3:23 AM

#

@thin hawk GNU stow, yadm, dotdrop, dotfiles, chezmoi, homeshick, etc.. pick your poison

#

@pulsar vapor try entr

#

https://github.com/eradman/entr

GitHub

eradman/entr

A utility for running arbitrary commands when files change - eradman/entr

pulsar vapor Jul 10, 2020, 3:29 AM

#

@robust cave Thank you Kosayoda!

thin hawk Jul 10, 2020, 3:43 AM

#

Thanks

modern kestrel Jul 10, 2020, 12:50 PM

#

how can i follow a port forwarding request?

#

trying to see if it is actually going via a remote bastion before hitting the endpoint i want

obtuse depot Jul 10, 2020, 2:33 PM

#

$$ in bash is a process ID

#

you don't have a space between echo and $$

mossy wharf Jul 10, 2020, 2:34 PM

#

Ho ok tq

plush sparrow Jul 10, 2020, 10:53 PM

#

I love to swap. I do it all the time. I wake up, I do some swapping to get my day started. Sometimes I swap just for fun and sometimes I do it to relax myself in the evening before going to bed. I love to swap. I removed most of the ram, left only 20mb for the swapping. I use old hdd that my dad gave me before he passed away. With his last breath he told me: "Son, do not listen to the naysayers, swap is all that matters, swap is the answer to the meaning of life, swap swiftly, swap with pride." I always listen to those words in my head when i swap with that hdd, my eyes tear up and sometimes I get a tingling sensation through my whole body. I need to swap right now. I failed school because all I did was swap, they fired me from numerous jobs because all I did was swap. I swapped my wife and kids, I swapped my career, I swapped my future. I want to swap my life. I love swap. pls help

obtuse depot Jul 11, 2020, 10:23 AM

#

you know, these days I've noticed by default linuxes (by which I mean ubuntu since that's all I seem to install these days) has switched from swap partitions to swap files

#

I think this is a good thing. I'm fed up with losing disk space to swap partitions just because the RAM in this computer is disproportionately large compared to the drive space

#

16GB RAM on a machine with only 100gb of drive space, if you follow the old 1.5x rule of thumb for swap partitions, you've just lost 25% of your drive to a swap partition

main olive Jul 11, 2020, 4:01 PM

#

1.5x swap for 16G ram is ridiculous

#

i don't think you even need 0.5x of that

#

16 + (16 x 1.5) = 40. I have 40G memory and no swap, and regularly have a pretty heavy workload (multiple browsers, VMs, Burp, electron apps etc) and I've never encountered my memory getting full to the point where I'd need to swap

obtuse depot Jul 11, 2020, 4:03 PM

#

depends if you want to hibernate on swap

#

🤷‍♂️

main olive Jul 11, 2020, 4:03 PM

#

ah yeah that's one downside

#

but meh, sleep is fine for me

obtuse depot Jul 11, 2020, 4:04 PM

#

that is true, and on server machines none of this applies anyway. but my point still stands that swap on root fs is probably a better option for most people these days despite the drawbacks, and I'm happy that that's the case

main olive Jul 11, 2020, 4:04 PM

#

it depends on your host fs, to be honest

#

if your swapfile is on a journaling or COW fs, it's going to drastically hit the performance of the drive and perhaps even the lifespan

#

the main benefit of swap-as-partition is that it runs its own fs with basically no overhead and potentially troublesome fs features, such as cow

obtuse depot Jul 11, 2020, 4:07 PM

#

my thoughts on this is that you want to not swap. and swapping is a backup plan in case things go south in the RAM department. Things will be terrible, but you're not going to hard crash while you're swapping heavily

#

if you do swap a lot, then yeah, swap partition might be the way

thin hawk Jul 11, 2020, 4:12 PM

#

@robust cave You told me a hell of a thing, chezmoi is wow, i'm working on makefile, would surely share my dotfiles. Thanks man!

pale harness Jul 11, 2020, 6:09 PM

#

how to i upgrade my python version on ubuntu 18?

#

i wanna upgrade from 3.6 to 3.8

main olive Jul 11, 2020, 6:20 PM

#

@pale harness pyenv

pale harness Jul 11, 2020, 6:20 PM

#

what

main olive Jul 11, 2020, 6:21 PM

#

https://github.com/pyenv/pyenv pyenv

GitHub

pyenv/pyenv

Simple Python version management. Contribute to pyenv/pyenv development by creating an account on GitHub.

pale harness Jul 11, 2020, 6:21 PM

#

sry uh

#

im completely new to this stuff

#

ah wait- nvm i got it

obtuse depot Jul 11, 2020, 7:22 PM

#

ah wait- nvm i got it
no, nvm is for node versions, you should be using pyenv

hollow linden Jul 11, 2020, 7:58 PM

#

Guys is there any like free SSH server I can connect to?

#

(Not heroku please)

boreal falcon Jul 11, 2020, 8:21 PM

#

do you need remote server specifically ?

hollow linden Jul 11, 2020, 8:22 PM

#

I mean , only I want to mess with it and have some files in it

#

and I wanna run the files sometimes

main olive Jul 11, 2020, 8:32 PM

#

@hollow linden google cloud

#

gives 12 months

#

of free vps

hollow linden Jul 11, 2020, 8:32 PM

#

I see

main olive Jul 11, 2020, 8:32 PM

#

AWS does the same as far as i remember

#

but google one is the one i've been using myself

hollow linden Jul 11, 2020, 8:32 PM

#

Do they need credit card info?

main olive Jul 11, 2020, 8:32 PM

#

ye

#

they dont charge

#

though

hollow linden Jul 11, 2020, 8:32 PM

#

So I can't do it

main olive Jul 11, 2020, 8:32 PM

#

even after 12 months expire

#

dont you have a credit card

#

maybe they added paypal as an option

hollow linden Jul 11, 2020, 8:33 PM

#

Ik , bur the problem is , I don't have a valid card

#

but*

main olive Jul 11, 2020, 8:33 PM

#

well

#

maybe your relatives do

#

its free of charge

#

they just require information

#

as far as i remember

hollow linden Jul 11, 2020, 8:33 PM

#

ok...I live in Iran and it's not supported

#

Neither does paypal

main olive Jul 11, 2020, 8:42 PM

#

you can use vpn

#

there are many cheap ones

hollow linden Jul 11, 2020, 8:44 PM

#

But the problem isn't the site

#

It doesn't support credit cards

#

Iranian credit cards*

main olive Jul 11, 2020, 8:52 PM

#

oh

#

does it only accept credit card

#

or paypal too

#

perhaps

summer trail Jul 11, 2020, 10:13 PM

#

ok...I live in Iran and it's not supported
@hollow linden (not that this is on-topic for this channel, but in case you don't realize this): US companies are not allowed to do business with Iranian nationals. If they were to take your money, they'd be committing a crime.

digital haven Jul 12, 2020, 1:18 PM

#

is anyone able to record audio from their terminal using mac os? I'm trying sox, it's not working for me

#

ok.... it works on Terminal but not iTerm, why would that be?

brisk sky Jul 13, 2020, 12:26 AM

#

hi anyone here knows about raspberry pi? I have a one from 2012 I believe, when I try to sudo apt-get update, it manages to fetch some things, but then it tries to reach some links and it gives me a 404 Not Found error, this happens to every update/install that I try to make
I tried to get pip by sudo apt install python3-pip and it happens the same
if someone could please help me I would really appreciate it

obtuse depot Jul 13, 2020, 12:30 AM

#

likely it's running quite an old OS, which has since moved their apt lists elsewhere

#

you can either go look at your apt lists and get new URLs

#

or, consider reinstalling a newer OS

#

I'd recommend reinstalling if you're starting fresh. now's a good time for it

ionic swift Jul 13, 2020, 8:19 PM

#

Does top show if it's using 100% of the core or utilizing 100% of the core?

fresh saddle Jul 13, 2020, 8:25 PM

#

100% of the core available time

boreal falcon Jul 14, 2020, 8:27 AM

#

what's the difference between using and utilizing ?

fresh saddle Jul 14, 2020, 8:31 AM

#

I think it is the same idea

#

Well, that's the same word, just not at the same tense

round shuttle Jul 14, 2020, 9:17 AM

#

It's the same idea, but not the same word : 'to use' vs 'to utilize'.
I think there's a minor subtelty between the two, but I can't put my finger on it…

dreamy wing Jul 14, 2020, 9:20 AM

#

Anyone know how to launch a new vlc process from terminal in such that when the terminal closes, it is still open?

round shuttle Jul 14, 2020, 9:20 AM

#

yeah

#

nohup vlc &

dreamy wing Jul 14, 2020, 9:21 AM

#

thanks

warped nimbus Jul 15, 2020, 7:25 PM

#

<IN> is just a placeholder

#

I think the way this works is you specify a prefix once to i and your files are supposed to be named like the docs show

#

So if your prefix is hello then your files should be named hello_params hello0_int and so on

#

Probably, but I am not sure

round shuttle Jul 16, 2020, 9:07 AM

#

To me, you wouldn't omit anything, you hust should rename your files according to the pattern; then, you just pass the common prefix as paramter to -i. For example, rename your files hello_params, hello0_int, hello1_int, hello_blast, and then just call ./networkblast -i hello -o whatever

swift pond Jul 16, 2020, 4:55 PM

#

Guys, how do you test your regex for egrep commands? I'm using: https://www.regextester.com/109207

GREP gen - Regex Tester/Debugger

Regular Expression to GREP generator for autotests

#

But it doesn't work when I try it in my terminal

warped nimbus Jul 16, 2020, 5:06 PM

#

I don't know of a site to test egrep specifically. Your site does support the PERL style, and so does GNU grep with grep -P.

swift pond Jul 16, 2020, 5:16 PM

#

I'll try grep -P, thanks so much man

main olive Jul 16, 2020, 11:31 PM

#

anyone have any good vm recommendations cuz im thinking about setting up a unix flavour on there

warped nimbus Jul 16, 2020, 11:36 PM

#

What kind of recommendation? VM software, or a Linux distro to put on it?

main olive Jul 17, 2020, 12:01 AM

#

vm software

warped nimbus Jul 17, 2020, 12:01 AM

#

Virtualbox is easy to set up

#

Qemu if you're feeling spicy

main olive Jul 17, 2020, 12:02 AM

#

and flavour lol

#

dont know what to choose lol

warped nimbus Jul 17, 2020, 12:02 AM

#

Wdym by flavour?

main olive Jul 17, 2020, 12:03 AM

#

like unbunto

#

mint

warped nimbus Jul 17, 2020, 12:04 AM

#

Yeah, that's typically called a distro (short for distribution)

main olive Jul 17, 2020, 12:04 AM

#

lol ive been calling em flavors

warped nimbus Jul 17, 2020, 12:05 AM

#

Everyone is gonna have a different preference. Just trying something out and see if you like it. Don't get too caught up trying to find what is "best"

main olive Jul 17, 2020, 12:05 AM

#

ic

#

ima just download one and try it i guess

warped nimbus Jul 17, 2020, 12:06 AM

#

I use Arch Linux but I would absolutely not recommend it for a Linux beginner.

#

Maybe Debian?

#

Heard good things about Mint and Manjaro too, but cannot speak from experience.

main olive Jul 17, 2020, 12:06 AM

#

ima try unbunto first

#

see if i like it

warped nimbus Jul 17, 2020, 12:06 AM

#

It's spelled Ubuntu

main olive Jul 17, 2020, 12:08 AM

#

lol

#

tx for the advice tho

nimble panther Jul 17, 2020, 8:40 AM

#

which distro do you guys recommend for turning an old laptop into a server of sorts to run discord bot(s)

round shuttle Jul 17, 2020, 9:28 AM

#

Same as for a "regular" use, i.e. Ubuntu/Debian, imho

#

just boot it in init 3 / use the server version of the distro

nimble panther Jul 17, 2020, 10:11 AM

#

thank you
I was thinking of init3 but felt that Manjaro (my main OS) is not the best choice.
I think I'll go with Debian.

formal schooner Jul 17, 2020, 2:36 PM

#

debian for sure

#

old laptop seems like a good idea for a server, should be a lot more power effecient than e.g. an old workstation pc

plush sparrow Jul 18, 2020, 12:43 AM

#

Rolling distros are easier ... change my mind. I would absolutely recommend arch/manjaro for your avg. window gamerchan over Debian/Ubuntu.

formal schooner Jul 18, 2020, 1:30 AM

#

debian testing is damn near rolling

#

i dont have anything against arch

#

arch might be better just for the sheer breadth of the package ecosystem

summer trail Jul 18, 2020, 2:36 AM

#

Rolling distros are easier until you hit a world-breaking bug, like a package that removes everything in the root filesystem when the package manager (running as root) tries to remove it, or something like that.

#

getting the latest and greatest packages as soon as they're available is all well and good until the latest and greatest version of a package corrupts a file you need, or breaks a feature you rely on, and then they're annoying, and in those cases you would have been thankful for the distribution to have gone through a testing period before you got that package.

serene eagle Jul 18, 2020, 6:19 AM

#

how do I activate my venv?

📎 unknown.png

warped nimbus Jul 18, 2020, 6:21 AM

#

Are you on linux?

#

If so, it's source ./activate

#

Well, you don't necessarily have to be on linux. The above will work if you're using something like bash as your shell.

#

Oh this is #unix, silly of me to ask even

serene eagle Jul 18, 2020, 6:24 AM

#

lol it's alright

#

lemme try it

#

📎 unknown.png

warped nimbus Jul 18, 2020, 6:25 AM

#

You didn't type what I showed

serene eagle Jul 18, 2020, 6:25 AM

#

oh sorry

#

📎 unknown.png

warped nimbus Jul 18, 2020, 6:26 AM

#

Though I wonder why you have exe's in your environment if you're on linux

serene eagle Jul 18, 2020, 6:26 AM

#

oh

warped nimbus Jul 18, 2020, 6:26 AM

#

Did you copy it over from a Windows machine?

serene eagle Jul 18, 2020, 6:26 AM

#

this is WSL lol

#

since I thought it's a linux thing

#

I should be asking here

warped nimbus Jul 18, 2020, 6:26 AM

#

Yeah that's fine

#

I just didn't get that at first

serene eagle Jul 18, 2020, 6:27 AM

#

well source didn't work

#

I wanna activate it cause all my modules are in there

#

I can't start without being able to activate it

#

and I gotta figure out the path

#

or I can't use selenium :3

warped nimbus Jul 18, 2020, 6:28 AM

#

I'm honestly not sure. I've barely used WSL. Is it possible for you to recreate the venv through WSL?

serene eagle Jul 18, 2020, 6:28 AM

#

Should be able to

#

because the commands work fine

#

docker works

warped nimbus Jul 18, 2020, 6:28 AM

#

I wonder if it will still generate exes in there if you do it inside WSL

serene eagle Jul 18, 2020, 6:28 AM

#

well yeah

#

not sure though

#

without a UI I had to navigate everythiing in a CLI

#

which I guess was the point

#

plus i'm liking the CLI

#

it's so much faster

warped nimbus Jul 18, 2020, 6:29 AM

#

Usually on linux the venv activate will be in a bin folder instead of Scripts, and you'll have linux binaries instead of exes. Not sure what happens in WSL though

#

source .venv/bin/activate is how I activate venvs in bash on linux.

serene eagle Jul 18, 2020, 6:30 AM

#

yeah let me try that actually

#

i'll make a new venv

warped nimbus Jul 18, 2020, 6:30 AM

#

By the way, you can create a new venv with python -m venv /path/to/new_venv_folder

serene eagle Jul 18, 2020, 6:31 AM

#

yeah

#

It needs

#

python3-venv

#

so i'm getting that

#

it worked

#

yeah

warped nimbus Jul 18, 2020, 6:35 AM

#

blobthumbsup

serene eagle Jul 18, 2020, 6:37 AM

#

I just gotta find the path

#

add gecko driver to it

#

I just have no idea how to do that

#

theres always yt lol

nimble panther Jul 18, 2020, 6:52 AM

#

Rolling distros are easier ... change my mind. I would absolutely recommend arch/manjaro for your avg. window gamerchan over Debian/Ubuntu.
@plush sparrow sorry for the late reply, but would you recommend a rolling distro for a server?

#

I like Manjaro for the rolling releases but was not sure whether that would be the best choice for a server (guys feel free to ping me)

wicked aspen Jul 18, 2020, 9:33 AM

#

Hey, I've got a utf-8 text file, apparently you guys dislike uploads here, so please get it here: https://mega.nz/file/sNgQxYZK#epGSG700QKg-NgdjD4_D5SxzAX5QiNJO2NxvU1-d6N4

78 byte file on MEGA

#

The problem is that reading it in a usual way produces 63-char long string

#

While simply copying it into ipython produces 36-char long string

#

I tried various encodings, etc, but can't find the way to read it in such a way to produce the same 36-char string as I'd get by simply copying

#

Anyone knows the solution?

plush sparrow Jul 18, 2020, 11:05 AM

#

@summer trail yay is not running as root

obtuse depot Jul 18, 2020, 11:37 AM

#

why not python open() the file?

silent vector Jul 18, 2020, 2:30 PM

#

@nimble panther Nope Debian /CentOS/Ubuntu

#

Do the job fine

#

Also they are the standad

#

And you can find solutions very easily if a problem occures

wicked aspen Jul 18, 2020, 2:47 PM

#

why not python open() the file?
@obtuse depot well, try opening and reading that file, it produces different result from just copying the string.

obtuse depot Jul 18, 2020, 2:50 PM

#

maybe you have some kind of encoding issue

#

I suggest exploring why your encoding is off, and using appropriate encoding options to load it correctly, otherwise open as binary and do the conversion yourself

#

a hex editor can help

nimble panther Jul 18, 2020, 2:53 PM

#

thanks XLM

#

I have the live usb ready

#

with debian

plush sparrow Jul 18, 2020, 7:34 PM

#

NixOS for servers is incredibly stable.

#

But I run Ubuntu on my personal one :-)

silent vector Jul 18, 2020, 7:49 PM

#

@plush sparrow Whats nix based

#

On

#

Have heard of it

#

But just dont know what distro family it belongs to

formal schooner Jul 18, 2020, 10:45 PM

#

Totally custom

silent vector Jul 19, 2020, 11:12 AM

#

@formal schooner Ow so its similar to gentoo

#

You compile all your libraries

formal schooner Jul 19, 2020, 1:17 PM

#

P sure it's source only yes

tawdry sonnet Jul 19, 2020, 5:54 PM

#

I got no interest in linux as my os, I'm very happy with windows, however I would like to get comfortable using ubuntu server. I have a spare partition on my computer, can it be installed there no problem or will that not work?

tiny lava Jul 19, 2020, 6:02 PM

#

it can be installed there but be prepared to do some troubleshooting, dual booting isn't always just plug and play

tawdry sonnet Jul 19, 2020, 6:05 PM

#

Do you mean that the server version requires special boot options? I've used the partition with a few other distros to familiarize myself and never had issues.

tiny lava Jul 19, 2020, 6:06 PM

#

I mean windows isn't great about being dualbooted

#

on ubuntu your bootloaders should work fine, but you'll still have to deal with like clock differences and such

tawdry sonnet Jul 19, 2020, 6:08 PM

#

Oh okay. Yeah im familiar with that. Thanks for the heads up!

nimble panther Jul 19, 2020, 6:30 PM

#

but how are you planning on using ubuntu as a server? You will not be able to use windows and ubuntu simultaneously

tiny lava Jul 19, 2020, 6:42 PM

#

Well he can still practice on it without running persistent services

tawdry sonnet Jul 19, 2020, 8:33 PM

#

Yeah that's the plan, I just want to play with it for future reference. I've been using docker containers, which work fine, however I want to compare them to the real thing.

summer trail Jul 20, 2020, 12:05 AM

#

using WSL on Windows might be a better way to learn the Linux command line.

#

lower commitment than dual booting, and most everything will work the same.

formal schooner Jul 20, 2020, 1:11 AM

#

Or a VM i guess

bright oasis Jul 20, 2020, 7:53 AM

#

any one working on kernel module??

limpid fox Jul 20, 2020, 8:22 AM

#

yeah. what's up?

topaz hemlock Jul 20, 2020, 8:57 AM

#

Why is this working? ./foxit-reader-install.run but this one isn't working source foxit-reader-install.run ?
I Googled it and as far as I know sourcing runs the script in the current shell, while executing will run the script in another shell. But why would running the installer script in the current shell not work?

silent vector Jul 20, 2020, 11:56 AM

#

@dr777#3880 Been reading the linux device drivers book

#

Its pretty cool

heady shore Jul 20, 2020, 11:57 AM

#

@topaz hemlock What isn't working about that?

topaz hemlock Jul 20, 2020, 2:54 PM

#

~/Downloads $ source FoxitReader.enu.setup.2.4.4.0911$r057d814$.x64.run
FoxitReader.enu.setup.2.4.4.0911(r057d814).x64.run:20: parse error near )' ~/Downloads $ ./FoxitReader.enu.setup.2.4.4.0911(r057d814).x64.run`
[this time no errors! installed successfully]

formal schooner Jul 20, 2020, 5:20 PM

#

@topaz hemlock look at the shebang

#

It probably isn't a shell script

#

Or might be for a different shell

main olive Jul 20, 2020, 5:34 PM

#

Hello! I am new to Python (also I don't know where to fit my question). I wanted to ask if it is possible to have two different versions of Python installed on Mac? I have currently Python 3.7.7. but I need Python 2 to run a program which is working only on Python 2.

trail grove Jul 20, 2020, 5:35 PM

#

yes, it's very possible, and easy to manage using pyenv: https://github.com/pyenv/pyenv

GitHub

pyenv/pyenv

Simple Python version management. Contribute to pyenv/pyenv development by creating an account on GitHub.

main olive Jul 20, 2020, 5:36 PM

#

Thank you for quick reply! I will try

topaz hemlock Jul 20, 2020, 6:22 PM

#

@formal schooner it's not a script, I open it with a text editor and there's no shebang. Just gibberish.

main olive Jul 20, 2020, 6:23 PM

#

do file xxxxxx it'll tell you what type of file it is

#

and yea source runs a script

#

.run isnt normally a script, but a binary executable

heady shore Jul 20, 2020, 7:08 PM

#

Right, can't source a binary

formal schooner Jul 20, 2020, 8:55 PM

#

@topaz hemlock that means it's definitely not a shell script. so obviously sourceing it would fail

#

source just reads one line at a time and executes it in the current shell session

topaz hemlock Jul 20, 2020, 8:55 PM

#

right

#

thanks yes that was the case

main olive Jul 21, 2020, 7:46 AM

#

you can source binary files

#

There isn't a build of Python for PPC higher than 2.5, correct?
(Debian Etch)
If I posted in the wrong channel, let me know.

#

seems right

#

Fook.

#

@main olive pyenv should be able to bootstrap you a 3.x though

#

On Debian 4?

#

Cause I'm doing this whole thing on a Wii XD

#

maybe

#

also isn't there a newer distro for the wii?

#

building python3 on the Wii will take quite a bit of time

#

There's Debian Jessie, but I spent so much time configuring Etch that I'd need a separate SD card.

#

and you may need to give it a large swap space

#

ie on the SD card itself

#

the Wii doesn't exactly have a lot of memory

#

88mb

#

Yep

#

what kernel version is it running btw?

#

Uhh

#

XWhiite V0.2 kernel 2.0 maybe?

#

I don't know how compatible newer python versions are with older kernels

#

The kernel version on the Wii is 2.6.27b.

#

(XWhiite)

#

@main olive I have heard of swap but I don't know how to use it/create a swap space

#

all you need to know https://wiki.archlinux.org/index.php/swap

Swap

#

and 2.6 should be fine

#

Okay I'll check synaptic if it has pyenv

#

just use pyenv-installer

#

apt-get install pyenv-installer or just pyenv-installer?

main olive Jul 21, 2020, 9:34 AM

#

@main olive curl https://pyenv.run | bash

main olive Jul 21, 2020, 10:29 AM

#

@main olive bash: curl: command not found

main olive Jul 21, 2020, 10:50 AM

#

do you have wget?

#

wget https://pyenv.run -O pyenv-install && chmod +x pyenv-install && ./pyenv-install

main olive Jul 21, 2020, 12:29 PM

#

Okay I'll look into it

#

I don't have wget btw

main olive Jul 21, 2020, 3:30 PM

#

@main olive

blissful sage Jul 21, 2020, 5:01 PM

#

help

#

terminal keeps using the > symbol

sinful solar Jul 21, 2020, 5:02 PM

#

what do you mean?

blissful sage Jul 21, 2020, 5:04 PM

#

i was trying to run a cat command

#

and now

#

> :q
> :
> q
> exit
> wq
> q
> :wq
> :qw
>

#

this keeps happening

sinful solar Jul 21, 2020, 5:05 PM

#

in the terminal?

blissful sage Jul 21, 2020, 5:05 PM

#

yea

#

well

#

i mean i typed those letters

sinful solar Jul 21, 2020, 5:05 PM

#

press ctrl + c

blissful sage Jul 21, 2020, 5:06 PM

#

ok thx

#

tht worked

#

what was going on?

sinful solar Jul 21, 2020, 5:07 PM

#

you just typed cat?

blissful sage Jul 21, 2020, 5:11 PM

#

well there was a file path after

#

but it had a ' by mitake at the end

sinful solar Jul 21, 2020, 5:12 PM

#

you cna press the up arrow to see what you typed

#

or the command history

#

i forgot the specifics to be honest

#

i think there's a command to prepend everything you type in cat with a certain char

heady shore Jul 21, 2020, 5:13 PM

#

You were just stuck in a string? @blissful sage

sinful solar Jul 21, 2020, 5:13 PM

#

perhaps someone else can shed some light

heady shore Jul 21, 2020, 5:14 PM

#

but it had a ' by mitake at the end
Then you were stuck in a string

#

You can either get out by completing the string, or sending a SIGINT

blissful sage Jul 21, 2020, 5:22 PM

#

Gotcha thnks

heady shore Jul 21, 2020, 5:23 PM

#

👍

pseudo barn Jul 22, 2020, 3:46 PM

#

anyone here an expert at terminal manipulation?

#

i have a program which has a spinner indicating what is running, and the output scrolling above it. the problem is i don't know how to do that, and it looks like this:

⣽ Updating Git repo 'cna-mme_cc'Already up to date.
⣟ Updating Git repo 'cna-mme_cc'Already up to date.
⣻ Updating Git repo 'cna-mme_cc'Already up to date.
⣷ Updating Git repo 'cna-mme_cc'Already up to date.
⣯ Updating Git repo 'cna-mme_cc'Already up to date.

what i want it to look like:

Already up to date.
Already up to date.
Already up to date.
Already up to date.
Already up to date.
⣯ Updating Git repo 'cna-mme_cc'

#

similar to npm's output, or apt's

formal schooner Jul 22, 2020, 3:50 PM

#

you can use \r to overwrite the previous line instead of printing to a new one

#

http://fitnr.com/showing-a-bash-spinner.html one example

Louis Marascio « Fixed in the Next Release

Louis Marascio

Showing a Bash Spinner for Long Running Tasks

humble onyx Jul 22, 2020, 4:26 PM

#

# ./simple_program --script=helloworld
# ./simple_program --script helloworld
# ./simple_program script=helloworld```
What is the difference between those?

fresh saddle Jul 22, 2020, 4:28 PM

#

It simply depends on how the software parses commandline args

#

Some softwares do it the first way, some the second, others the third...

formal schooner Jul 22, 2020, 4:31 PM

#

kernel runs ./simple_program with args: --script=helloworld
kernel runs ./simple_program with args --script, helloworld
kernel runs ./simple_program with args script=helloworld

#

so yes it's entirely up to simple_program to determine how to handle the args

humble onyx Jul 22, 2020, 4:31 PM

#

in the third case isn't it an env variable?

formal schooner Jul 22, 2020, 4:31 PM

#

no

fresh saddle Jul 22, 2020, 4:32 PM

#

Nope

formal schooner Jul 22, 2020, 4:32 PM

#

an env var would be script=helloworld ./simple_program

fresh saddle Jul 22, 2020, 4:32 PM

#

Using an env var would be $MYVAR for instance

humble onyx Jul 22, 2020, 4:32 PM

#

so it has to go before the program

formal schooner Jul 22, 2020, 4:32 PM

#

yes

humble onyx Jul 22, 2020, 4:33 PM

#

thanks

fresh saddle Jul 22, 2020, 4:33 PM

#

Ah right

formal schooner Jul 22, 2020, 4:33 PM

#

note that make lets you get loose with this. CC=gcc make and make CC=gcc do completely different things but have the same effect in most simple cases

#

so that is one potential source of confusion

humble onyx Jul 22, 2020, 4:34 PM

#

I have never used make

formal schooner Jul 22, 2020, 4:34 PM

#

then ignore what i just said 🙂

humble onyx Jul 22, 2020, 4:34 PM

#

is it something I should definetely look into?

#

I am not doing anything complicated so far

sinful solar Jul 22, 2020, 4:35 PM

#

it's mostly for writing C programs so you don't compile by hand as your project structure grows

edgy matrix Jul 22, 2020, 7:52 PM

#

anyone know how I can save this info somewhere?

📎 unknown.png

heady shore Jul 22, 2020, 9:59 PM

#

Don't know if there's a way to retrieve that info after it's crashed if it's not piping to a file. If you know how to reproduce, just run it from the term and pipe it to a logfile

#

Alternatively you can edit the startup file to do the same, and then next time it happens to crash, you can check the logs

modern kestrel Jul 24, 2020, 12:11 PM

#

Anyone well versed in makefiles here?

heady shore Jul 24, 2020, 12:12 PM

#

DATAJA - Don't ask to ask, just ask. ;]

modern kestrel Jul 24, 2020, 12:53 PM

#

Sorted it

main olive Jul 24, 2020, 8:17 PM

#

currently for a program im making, there is a script that is supposed to run every x hours. should i rely on telling the user to make crontab entries for the script, to allow greater customization, or should i find another way to cover it automatically in the setup.py script, at the cost of the users customizability, with the advantage of an easy setup

spare lagoon Jul 24, 2020, 10:01 PM

#

@main olive a third option would be to use https://docs.python.org/3/library/sched.html

main olive Jul 24, 2020, 10:15 PM

#

thanks!

main olive Jul 25, 2020, 1:19 AM

#

how would u prevent sth like this when running code written for windows

📎 unknown.png

robust cave Jul 25, 2020, 1:23 AM

#

what program does this? Id raise an issue, code shouldnt hard code path separators

main olive Jul 25, 2020, 1:25 AM

#

i wrote sth in python for windows

#

and i kinda hardcoded seperators

#

now i kinda dont want to find em all

#

now im kinda sad

robust cave Jul 25, 2020, 1:26 AM

#

how big is the code that you wouldn't want to "find them all"?

main olive Jul 25, 2020, 1:26 AM

#

it occurs in multiple modules....

#

is os.path.join the perfered way

#

to prevent sth like this from happening

robust cave Jul 25, 2020, 1:29 AM

#

is os.path.join the perfered way
@main olive that works, but if you're using >Python 3.4? I think use the pathlib module and PurePath.joinpath

main olive Jul 25, 2020, 1:37 AM

#

i guess this is a lesson learned lol

formal schooner Jul 25, 2020, 1:40 AM

#

os.path.join is fine if you dont like pathlib

main olive Jul 25, 2020, 2:04 AM

#

ive been sticking with os.path.join cuz i tried pathlib once in a 3.8 venv and it said it couldnt import the pathlib module so ive just stayed away from it

main olive Jul 25, 2020, 5:08 AM

#

is there a way to change the permissions

📎 unknown.png

#

like how would i edit as root

tiny lava Jul 25, 2020, 5:18 AM

#

Chmod is the way to change permissions

#

Chown will change the owner

main olive Jul 25, 2020, 5:32 AM

#

like i wanna login as root with winscp cuz im using that as a file navigator

tiny lava Jul 25, 2020, 5:43 AM

#

then login as root

#

whats the issue

main olive Jul 25, 2020, 5:45 AM

#

yeah i fixed it

#

i first tried chmod

#

but i didnt have permission

#

i didnt realize i could login as root

tiny lava Jul 25, 2020, 5:46 AM

#

generally you shouldn't

#

but its okay to do it occasionally for things that require it

main olive Jul 25, 2020, 5:49 AM

#

i wanted to add a bind-address

vital spire Jul 25, 2020, 8:02 AM

#

@main olive Why not use sudo?

rocky plank Jul 25, 2020, 12:10 PM

#

^

broken maple Jul 25, 2020, 4:09 PM

#

can anyone help me with linux ?

robust cave Jul 25, 2020, 4:10 PM

#

please don't ask to ask in this server, just state your question so anyone who is capable of answering can answer

broken maple Jul 25, 2020, 4:12 PM

#

just a question dang no need to agro

#

ight heres my question

#

were do i start

main olive Jul 25, 2020, 4:13 PM

#

when installing ubunt on VM, it freezes on install

heady shore Jul 25, 2020, 4:18 PM

#

@broken maple DATAJA - Don't Ask To Ask, Just Ask

#

@main olive Where in the process?

main olive Jul 25, 2020, 4:24 PM

#

When i install first time on VB

#

VM

#

first time it starts up to install

#

when it gets to the ubuntu logo and the loading icon it freezes completely

#

i increased the clocks in settings

#

and turned off/on 3d acceleration

boreal falcon Jul 25, 2020, 5:00 PM

#

what about disk space and memory ?

main olive Jul 25, 2020, 5:04 PM

#

i got 10gb virtual memory assigned ; s

#

thats probably why

boreal falcon Jul 25, 2020, 5:06 PM

#

i dunno that should be enough

#

do you install fully from image or use network installation too ?

main olive Jul 25, 2020, 5:08 PM

#

fully from image from ubuntu site

boreal falcon Jul 25, 2020, 5:14 PM

#

no i'm wrong, 10gb is not enough https://linuxconfig.org/ubuntu-20-04-system-requirements

Ubuntu 20.04 System Requirements - LinuxConfig.org

In this guide, we go over the minimum and recommended system requirements for installing Ubuntu 20.04 Focal Fossa Linux.

main olive Jul 25, 2020, 5:22 PM

#

how do i change it?

main olive Jul 25, 2020, 5:39 PM

#

@boreal falcon

#

i changed the size

#

📎 unknown.png

#

still freezes

boreal falcon Jul 25, 2020, 7:19 PM

#

how many cpu cores did you assign ?

tawdry sonnet Jul 25, 2020, 8:55 PM

#

I've been reading through the readline manual and playing around with it in bash. I'm looking for some kind of focused exercise type thing. Anyone know of something like that?

#

Something like "Do X manipulation in Y seconds using Z keystrokes"

#

Like touch-typing practice, but for readline and/or vim keystrokes.

heady shore Jul 26, 2020, 12:42 PM

#

I don't know of anything like that, @tawdry sonnet, but that sounds like an excellent idea

clear scarab Jul 26, 2020, 12:59 PM

#

you could try https://www.openvim.com/ or http://www.vimgenius.com/

vital spire Jul 26, 2020, 1:07 PM

#

@clear scarab That's the same page. (EDIT: Fixed)

robust cave Jul 26, 2020, 1:15 PM

#

for extreme stuff, https://www.vimgolf.com/

vital spire Jul 26, 2020, 1:20 PM

#

That's fun. I just tried one.

#

I only don't like that it doesn't reward generic solutions. Like all the input files are really small. So if you go manually through the lines to perform necessary operations it's fewer keystrokes/more points than creating a generic solution that works on files of any size.

digital haven Jul 26, 2020, 1:31 PM

#

is there any reason that alias grep=egrep would be a bad idea?

#

seems that it'd do exactly the same thing just means I can use regex if i want

vital spire Jul 26, 2020, 1:40 PM

#

Why not just use grep -E for regex support?

#

As for bad idea, maybe you don't always want regex? E.g. grepping for the literal character . as opposed to the regex equivalent. You'd need to escape these always then.

worn apex Jul 26, 2020, 1:43 PM

#

well

#

you have to escape . anyway for regular grep

#

egrep just has more magic characters, regular grep doesn't have none, that's fgrep

#

it's still regex it just doesn't have some magic characters ( ) + by default [you can still get them with \ prefix on most systems]

vital spire Jul 26, 2020, 1:45 PM

#

* for example.

worn apex Jul 26, 2020, 1:45 PM

#

I tend to just put up with having to use $ $ \+ since i have to do that with vim anyway [vim regexes are an entirely different animal than the ones most people are used to from javascript/perl/etc once you get beyond the basics]

#

works in regular grep

vital spire Jul 26, 2020, 1:46 PM

#

[me@linux ~]$ cat test
asdf.
*fda
.hi
[me@linux ~]$ grep '*' test
*fda

I mean this.

worn apex Jul 26, 2020, 1:46 PM

#

well, that's because it isn't after anything

vital spire Jul 26, 2020, 1:47 PM

#

Ah okay.

worn apex Jul 26, 2020, 1:47 PM

#

'.*' has the same meaning in both grep and egrep

vital spire Jul 26, 2020, 1:47 PM

#

The more you know

tawdry sonnet Jul 26, 2020, 4:26 PM

#

On windows there is PortableApps, which is amazing for hopping across computers and performing regular resets. Anyone use something similar on linux? I've gotten use to never having to reconfigure my most important programs.

plush sparrow Jul 26, 2020, 8:45 PM

#

I've gotten use to never having to reconfigure my most important programs

That's what you have dotfiles for

tawdry sonnet Jul 26, 2020, 9:46 PM

#

You referring to the hidden files like .vimrc and .bashrc? Not really what I'd call portable since I'd have to relocate them off the usb and into the right directories.

formal schooner Jul 26, 2020, 9:54 PM

#

yeah, applications on linux typically don't have "portable" version

#

sometimes you can customize the settings directory/file location with an environment variable

#

but other times they just hard-code to $XDG_CONFIG_PATH or worse to $HOME

#

if you compile the appliction from scratch often you can change the "prefix" which is usually / by default

#

e.g. ./configure --prefix=~/portableapps/myapp will install the app to ~/portableapps/myapp/{bin,var,lib,etc....}

rocky plank Jul 27, 2020, 2:29 AM

#

anybody has any idea to why my chromium isn't displaying emojis?

#

like, my firefox displays em just fine, but chromium isn't

tawdry sonnet Jul 27, 2020, 2:36 AM

#

Decoder problem? A buddies phone was doing that, turns out he had unicode disabled.

rocky plank Jul 27, 2020, 2:37 AM

#

how can I check the decoder?

#

I'm relatively new to unix-like systems

#

(I don't even know if it's possible for instance)

tiny lava Jul 27, 2020, 5:40 AM

#

https://raspberrypi.stackexchange.com/a/104182

Raspberry Pi Stack Exchange

Colored emojis in Chromium

This is not a Pi-specific question, but any Pi user will run into this problem eventually if they use it as a desktop computer.

I tried this tutorial, but it doesn't fully work, breaks some apps,...

#

Actually the script would be quite different, but the gist is you probably are using a font that doesn't support them

main olive Jul 27, 2020, 7:06 AM

#

📎 IMG_20200727_123430.jpg

rocky plank Jul 27, 2020, 12:50 PM

#

@tiny lava it worked! thank you so much for sending that solution (:

karmic owl Jul 27, 2020, 10:13 PM

#

unix, minix, linux

plush sparrow Jul 28, 2020, 12:18 AM

#

@tawdry sonnet USB? This is 2020, just have a git repo with your dotfiles that way they are always in sync.

tawdry sonnet Jul 28, 2020, 12:31 AM

#

Not a bad idea, and I'll definitely use it for myself, but I was thinking more along the lines of not modifying any local files, should I be on a computer that isn't mine (friend, work, etc).

That said, the odds of that happening with a linux machine are almost non-existant. Happens frequently with windows.

loud monolith Jul 28, 2020, 11:28 AM

#

Hello! Guys

modern kestrel Jul 28, 2020, 1:56 PM

#

AVAILABLE_ENVS := eng transit-gateway
.PHONY: format
init:
    @cd $(BUILDPATH) && terraform init --reconfigure
test-%:
    $(eval ENV = $*)
    echo "env: $(ENV)"
ifneq ($(filter $(ENV),$(AVAILABLE_ENVS)),)
    $(eval BUILDPATH='$*/eu-west-2')
    @MAKE init BUILDPATH=$(BUILDPATH)
    @cd $(BUILDPATH) && terraform plan -var 'eks_cluster_name=$(cluster-name)'
else
    @echo "Invalid environment specified '$(ENV)'. Must be one of: $(AVAILABLE_ENVS)"
    exit 1
endif```

#

Anyone know why this makefile isn't working correctly? 😄

#

I just want it to make sure i'm passing either eng or transit-gateway through

formal schooner Jul 28, 2020, 2:39 PM

#

.SHELL := /usr/bin/bash
AVAILABLE_ENVS := eng transit-gateway

.PHONY: format

init:
    @cd $(BUILDPATH) && terraform init --reconfigure

test-%:
    $(eval ENV = $*)
    echo "env: $(ENV)"
ifneq ($(filter $(ENV),$(AVAILABLE_ENVS)),)
    $(eval BUILDPATH='$*/eu-west-2')
    @MAKE init BUILDPATH=$(BUILDPATH)
    @cd $(BUILDPATH) && terraform plan -var 'eks_cluster_name=$(cluster-name)'
else
    @echo "Invalid environment specified '$(ENV)'. Must be one of: $(AVAILABLE_ENVS)"
    exit 1
endif

discord has makefile syntax 🙂

#

what's wrong with the makefile currently?

#

what does $* mean in Make syntax?

#

ah implicit rule match

#

it looks right just eyeballing it

#

so im curious what the problem is

summer trail Jul 28, 2020, 7:41 PM

#

I believe the ifneq is evaluated at the time the rule is defined, not when it's being executed - so, before ENV has been set.

formal schooner Jul 28, 2020, 8:00 PM

#

presumably ENV is set before the makefile is run though right?

#

oh i see

#

yeah thats very very likely whats happening

#

youd need to wrap all this up in a macro and then call it

#

lots of $$ escaping

#

yuck

#

im not sure how youd even write that honestly

#

define test-rule =
    $(eval ENV = $*)
    @echo "env: $(ENV)"
ifneq ($(filter $(ENV),$(AVAILABLE_ENVS)),)
    $(eval BUILDPATH='$*/eu-west-2')
    @MAKE init BUILDPATH=$(BUILDPATH)
    @cd $(BUILDPATH) && terraform plan -var 'eks_cluster_name=$(cluster-name)'
else
    @echo "Invalid environment specified '$(ENV)'. Must be one of: $(AVAILABLE_ENVS)"
    exit 1
endif
endef

test-%:
    $(test-rule)

this might work as per https://www.gnu.org/software/make/manual/html_node/Canned-Recipes.html#Canned-Recipes

Canned Recipes (GNU make)

#

try it. you still might need to do a lot of $$ escaping to make it work

modern kestrel Jul 28, 2020, 8:27 PM

#

@formal schooner hey thanks i actually gave up because it was just an additional layer i was adding to make it user friendly but ill take a look thank you

formal schooner Jul 28, 2020, 8:29 PM

#

sure thing. as a starting point try $$-escaping everything in the define except $* itself

modern kestrel Jul 28, 2020, 9:05 PM

#

@summer trail I believe the ifneq is evaluated at the time the rule is defined, not when it's being executed - so, before ENV has been set.

what did you mean by that sorry i just read bvack properlu

summer trail Jul 28, 2020, 9:06 PM

#

the ifneq that you wrote is taking effect before the rule target is run, and the ENV isn't defined until the rule target is run.

modern kestrel Jul 28, 2020, 9:08 PM

#

Ohh okay thats so weird but thanks for clarifying

formal schooner Jul 28, 2020, 9:17 PM

#

that's just how make works

#

it interpolates all the variables first

topaz hemlock Jul 29, 2020, 1:13 PM

#

Hi all

#

I have a git repository inside another git repository, and so I had problem staging all the files from the containing repo. So I searched it and it's called a submodule. Now my problem is, the command git submodule add needs a remote-url as one of its argument, while mine is here locally, what do I do?

trim girder Jul 29, 2020, 1:14 PM

#

@topaz hemlock https://stackoverflow.com/a/6106503/174652

Stack Overflow

Nested git repositories without remotes (a.k.a. git submodule witho...

I have a project of which I am interested in breaking out portions as open-source. I've set up a "main" git repository (say, in a directory "main") and sub-repositories in "main/one", "main/two", "...

topaz hemlock Jul 29, 2020, 1:39 PM

#

thank you

formal schooner Jul 29, 2020, 1:51 PM

#

summary: git submodules without remotes dont really make sense 🙂

digital haven Jul 29, 2020, 9:29 PM

#

-> % if [[ "hello there" ~= .*?"there" ]]; then echo "yes"; fi
zsh: condition expected: ~=

-> % if [[ "hello there" =~ .*?"there" ]]; then echo "yes"; fi
zsh: failed to compile regex: repetition-operator operand invalid

how do i test for substring with a regex? 🤔

static cosmos Jul 29, 2020, 9:52 PM

#

usually you jsut type the substring

#

if I want to search for hello in a file example I would type grep "hello" example

#

but for your code, it looks like you are trying to run bash code with zsh

digital haven Jul 29, 2020, 9:56 PM

#

@static cosmos yeah i couldn't seem to find the zsh version of this

static cosmos Jul 29, 2020, 9:56 PM

#

Why not just run it with bash?

digital haven Jul 29, 2020, 9:56 PM

#

well my shell is zshell

static cosmos Jul 29, 2020, 9:57 PM

#

https://stackoverflow.com/a/8811800

Stack Overflow

How do you tell if a string contains another string in POSIX sh?

I want to write a Unix shell script that will do various logic if there is a string inside of another string. For example, if I am in a certain folder, branch off. Could someone please tell me how to

#

you can still do bash <script> tho

#

unless you actually don't have bash installed

digital haven Jul 29, 2020, 9:58 PM

#

so zshell doesn't have regex?

static cosmos Jul 29, 2020, 9:58 PM

#

I'm pretty sure it just doesn't have that one conditional operator

digital haven Jul 29, 2020, 9:59 PM

#

i can't find the one that it uses

static cosmos Jul 29, 2020, 9:59 PM

#

actually this says it does have that operator

#

http://zsh.sourceforge.net/Doc/Release/Conditional-Expressions.html

zsh: 12 Conditional Expressions

#

🤔

#

So actually maybe its your regex thats broken

digital haven Jul 29, 2020, 10:01 PM

#

looks ok, perhaps tho

#

it doesn't like *

static cosmos Jul 29, 2020, 10:02 PM

#

Yeah I think there is something funky with the specific regex implementation or something

digital haven Jul 29, 2020, 10:02 PM

#

weird, tested as a POSIX extended regular expression

#

I'm sure .*? is valid in that

static cosmos Jul 29, 2020, 10:03 PM

#

I don't think this is related to the problem, but pretty sure the quotes will make it not match

digital haven Jul 29, 2020, 10:03 PM

#

what do you mean

static cosmos Jul 29, 2020, 10:04 PM

#

the quotes around there

digital haven Jul 29, 2020, 10:04 PM

#

no that's fine

static cosmos Jul 29, 2020, 10:04 PM

#

.*?"there" would only match like something"there"

digital haven Jul 29, 2020, 10:04 PM

#

hrm

#

-> % if [[ 'hello there' =~ 'el' ]]; then echo 'yes'; fi
yes

#

no, seems ok

static cosmos Jul 29, 2020, 10:05 PM

#

about about making the pattern .'el'

#

I wish I was booted into linux rn lmao

digital haven Jul 29, 2020, 10:06 PM

#

also fine 😄

#

-> % if [[ 'hello there' =~ .'el' ]]; then echo 'yes'; fi
yes

static cosmos Jul 29, 2020, 10:07 PM

#

weird I wonder how that works

digital haven Jul 29, 2020, 10:07 PM

#

no idea lol, bash strings are always a mystery to me

#

i ended up solving this with if [[ "$(which python | sed -E 's/\/\.|\///g')" == *"virtual"* ]]

trim girder Jul 29, 2020, 10:25 PM

#

You're trying to see if the current python executable points to a virtual environment?

warped nimbus Jul 29, 2020, 10:33 PM

#

A better way may be to run a Python script that prints the site packages, or parse the python -m site output

#

Even then, the path doesn't necessarily have to have venv or virtual anywhere in its name

#

Or check environment variables, though I don't know which ones a venv sets

digital haven Jul 29, 2020, 11:31 PM

#

@warped nimbus in general, no, in my usecase they're within ~/.virtualenvs though

#

env variable might make more sense though 🤔

formal schooner Jul 29, 2020, 11:41 PM

#

afaik theres an env variable like $PYTHON_VIRTUALENV or something that should do it

robust cave Jul 30, 2020, 12:30 AM

#

I test for $VIRTUAL_ENV, works with pipenv, poetry, pyenv-virtualenv

formal schooner Jul 30, 2020, 12:38 AM

#

all of those use venv or virtualenv under the hood

#

and venv should be backward compatible with virtualenv

#

so makes sense

trim girder Jul 30, 2020, 12:44 AM

#

Yeah I'd likely lean towards check the environment as well.

summer trail Jul 30, 2020, 1:38 AM

#

I'm sure .*? is valid in that
@digital haven it isn't.
Per the standard:
The behavior of multiple adjacent duplication symbols ( '+', '*', '?', and intervals) produces undefined results.

https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html

obtuse depot Jul 30, 2020, 1:27 PM

#

looks like a non-greedy dot match all to me

#

but I guess depends on flavour

main olive Jul 30, 2020, 2:05 PM

#

Hi, since pipenv takes forever to check all the dependencies, I'd like to send a desktop notification whenever a pipenv command finishes

#

problem is, that I somehow dont manage to run that notification always after some pipenv command finishes

#

tried to make a function and set an alias to pipenv to call that function

#

but that somehow doesnt work out

#

        pipenv $@;
        notify-send 'Pipenv' 'has finally finished!'
}

alias pipenv='run_pipenv' ```

#

What am I doing wrong?

#

Hmm now its working as expected ...

#

not sure though

robust cave Jul 30, 2020, 2:18 PM

#

I don't see anything wrong

#

if you're using bash there's a small chance you have an alias called alert in your ~/.bashrc, in which case you can just run

pipenv <args>; alert

and it'll send you a notification when the command finishes

main olive Jul 30, 2020, 2:27 PM

#

Seems to be running now. Didnt change code, maybe just remainder of my failed tries

#

on an old terminal window

frosty patrol Jul 30, 2020, 3:14 PM

#

Likely you didn't open a new terminal or source the changes?

main olive Jul 30, 2020, 3:27 PM

#

yep, probably. It's working as expected now

#

should limit the output to install, sync, update

main olive Jul 30, 2020, 8:40 PM

#

Hi. I was looking for some help regarding powerlevel10k. Could you please help me with this error in my terminal?

Last login: Thu Jul 30 on ttys002
/Users/useruser/.cache/p10k-instant-prompt-useruser.zsh:local:28: key: inconsistent type for assignment

_p9k_dump_instant_prompt:217: parse error near }' _p9k_dump_instant_prompt:zcompile:331: can't read file: /Users/useruser/.cache/p10k-instant-prompt-useruser.zsh _p9k_dump_state:53: parse error near )'
_p9k_dump_state:zcompile:23: can't read file: /Users/useruser/.cache/p10k-dump-useruser.zsh

??

formal schooner Jul 30, 2020, 8:41 PM

#

@main olive are you sure you're running this with zsh and not bash or something?

main olive Jul 30, 2020, 8:41 PM

#

Yes, macos

#

zsh

#

catalina

#

Was working just fine till one hour ago

#

@formal schooner

formal schooner Jul 30, 2020, 8:42 PM

#

huh.

#

did you install it with homebrew, then brew update?

#

maybe something went wrong there

#

or maybe theres a bug in powerlevel 10k

main olive Jul 30, 2020, 8:47 PM

#

https://pastebin.com/aPdhwGpq is my zshrc file

Pastebin

Last login: Thu Jul 30 22:10:14 on ttys000/Users/useruser/.cache/p1...

Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.

#

📎 Screenshot_2020-07-30_at_10.48.35_pm.png

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I believe I installed it like this ^

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@formal schooner

formal schooner Jul 30, 2020, 8:49 PM

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@main olive do you have a lot of things in your zshrc file?

main olive Jul 30, 2020, 8:50 PM

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Yup

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Why?

formal schooner Jul 30, 2020, 8:50 PM

#

can you share it?

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!paste

shy yokeBOT Jul 30, 2020, 8:50 PM

#

Pasting large amounts of code

If your code is too long to fit in a codeblock in discord, you can paste your code here:
https://paste.pydis.com/

After pasting your code, save it by clicking the floppy disk icon in the top right, or by typing ctrl + S. After doing that, the URL should change. Copy the URL and post it here so others can see it.

main olive Jul 30, 2020, 8:51 PM

#

I did share pastebin

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https://paste.pydis.com/ does not work in my country

formal schooner Jul 30, 2020, 8:51 PM

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that's fine

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oh i see

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i can't use pastebin at work :/

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try bpaste.net

main olive Jul 30, 2020, 8:52 PM

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Not that too

formal schooner Jul 30, 2020, 8:53 PM

#

you have the line source ~/powerlevel10k/powerlevel10k.zsh-theme in your zshrc file?

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what happens if you run source ~/powerlevel10k/powerlevel10k.zsh-theme in ZSH?

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same errors?

main olive Jul 30, 2020, 8:54 PM

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❯ source ~/powerlevel10k/powerlevel10k.zsh-theme ─╯
_p9k_dump_state:416: unmatched '
_p9k_dump_state:zcompile:23: can't read file: /Users/useruser/.cache/p10k-dump-useruser.zsh

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@formal schooner

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https://bpa.st/GE3A

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Found a workaround

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That is the zshrc file

rotund imp Jul 30, 2020, 8:59 PM

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@rich sierra you can ask your question here probably

rich sierra Jul 30, 2020, 9:00 PM

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Any linux developer here? Familier with environment variables and cmake? Please

main olive Jul 30, 2020, 9:01 PM

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@formal schooner ?

rotund imp Jul 30, 2020, 9:02 PM

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@rich sierra just ask your question, someone here will know

rich sierra Jul 30, 2020, 9:05 PM

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Hello I am trying to compile firestorm https://blog.sarapayne.co.uk/2020/07/01/compile-firestorm-on-ubuntu-20-04/
I followed all the steps and it compiles and then i get error undefined reference to boost:details. Libboost is installed qnd updated but still getting this error

Sara Payne's Blog

Sara Payne

Compile Firestorm on Ubuntu 20.04 (Focal Fossa) - Sara Payne's Blog

Compile Firestorm on Ubuntu 20.04. A guide to compiling the Firestorm Viewer using Ubuntu 2.04 Focal Foassa. Each stage broken down and explained.

main olive Jul 30, 2020, 9:20 PM

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@formal schooner

formal schooner Jul 31, 2020, 1:14 AM

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@main olive i saw and was away. One ping is enough.

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It looks like your file got modified somehow

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Try just deleting the repo and re-downloading it

rich sierra Jul 31, 2020, 5:58 AM

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I tried many times and even on different linux distribution

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I think its environment variable issue cmake can't find boost libraries

main olive Jul 31, 2020, 10:14 AM

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@formal schooner Hi. How come the file was modified?

formal schooner Jul 31, 2020, 10:31 AM

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I have no idea

main olive Jul 31, 2020, 10:32 AM

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I fixed it but once that software/thing runs again it will again break my shell

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How can I identify what software that is?

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@formal schooner

formal schooner Jul 31, 2020, 10:33 AM

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How did you fix it

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You are not giving enough detail

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What "software/thing"?

main olive Jul 31, 2020, 10:35 AM

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I asked https://github.com/romkatv/powerlevel10k/issues/921

GitHub

/Users/me/.cache/p10k-instant-prompt-me.zsh:local:28: key: inconsis...

Hi. I installed powerlevel10k on macOS Catalina by git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ~/powerlevel10k echo 'source ~/powerlevel10k/powerlevel10k.zsh-theme&...

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The owner of the repo said run exec zsh -fc '{ rm -rf -- ~/powerlevel10k ~/.cache/p10k*(N); mv ~/.zshenv ~/.zshenv.bak; mv ~/.zprofile ~/.zprofile.bak } 2>/dev/null; git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ~/powerlevel10k; exec zsh'

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I ran it, got fixed

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He said I have some bad software and "If you run it again, it'll again break your shell."

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@formal schooner

formal schooner Jul 31, 2020, 10:38 AM

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Share your zshrc and zprofile and zshenv files

main olive Jul 31, 2020, 10:40 AM

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Would it still help even if my problem was for now fixed?

formal schooner Jul 31, 2020, 10:44 AM

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I probably wont be able to find the problem...

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But you need to start disabling programs one by one

#

It sounds like you have something that is modifying other files

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Eg inserting itself into zshrc

main olive Jul 31, 2020, 10:45 AM

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Not malware right?

formal schooner Jul 31, 2020, 10:45 AM

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Probably not

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Just other badly designed software

main olive Jul 31, 2020, 10:45 AM

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Like what could it be for instance?

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Example?

formal schooner Jul 31, 2020, 10:45 AM

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I have no idea

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I am only able to guess

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Unless i can see your files

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Try pastebin again

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I am on my phone now

main olive Jul 31, 2020, 10:46 AM

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What files? The zshrc and zprofile and zshenv files ?

formal schooner Jul 31, 2020, 10:46 AM

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Yes

main olive Jul 31, 2020, 10:49 AM

#

Zshrc file is https://pastebin.com/E3qJm8gU

Pastebin

# Enable Powerlevel10k instant prompt. Should stay close to the top...

Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.

formal schooner Jul 31, 2020, 10:50 AM

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Why are you sourcing bash profile in zshrc

main olive Jul 31, 2020, 10:50 AM

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What directory is zprofile file in?

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My bash profile is literally export PATH="/usr/local/bin/python3.8:${PATH}"

~
"~/.bash_profile" 1L, 47C

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2 lines

formal schooner Jul 31, 2020, 10:51 AM

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I see

#

I don't see anything obvious in here

main olive Jul 31, 2020, 10:52 AM

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I need to send you my zprofile file too. What is its directory?

formal schooner Jul 31, 2020, 10:53 AM

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If you didnt create one, you dont have one

#

Same with zshenv

#

Do you get the same error every time with p10k? Or different errors

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The repo owner simply had you reinstall p10k with that command

main olive Jul 31, 2020, 10:54 AM

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Before I "fixed"/reinstall it using the owner's command exec zsh -fc '{ rm -rf -- ~/powerlevel10k ~/.cache/p10k*(N); mv ~/.zshenv ~/.zshenv.bak; mv ~/.zprofile ~/.zprofile.bak } 2>/dev/null; git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ~/powerlevel10k; exec zsh' during problem my zshrc was https://pastebin.com/aPdhwGpq

formal schooner Jul 31, 2020, 10:55 AM

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If the problem happens again

#

Go to the p10k dir on your computer

#

And run git diff

main olive Jul 31, 2020, 10:56 AM

#

Do you get the same error every time with p10k? Or different errors
What do you mean? It was working just fine till day before yesterday and something made me get the errors ```Last login: on ttys001
/Users/useruser/.cache/p10k-instant-prompt-useruser.zsh:local:28: key: inconsistent type for assignment

_p9k_dump_instant_prompt:217: parse error near }' _p9k_dump_instant_prompt:zcompile:331: can't read file: /Users/useruser/.cache/p10k-instant-prompt-useruser.zsh _p9k_dump_state:53: parse error near )'
_p9k_dump_state:zcompile:23: can't read file: /Users/useruser/.cache/p10k-dump-useruser.zsh``` and once I reinstalled p10k using the repo owner instruction the error for now has gone

formal schooner Jul 31, 2020, 10:56 AM

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I think you accidentally edited a file in there

#

So if it happens again

#

Go to the p10k repo and run git diff

main olive Jul 31, 2020, 10:57 AM

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Ok, give me a sec

formal schooner Jul 31, 2020, 10:57 AM

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Does the problem happen now ?

main olive Jul 31, 2020, 10:58 AM

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❯ vim ~/.zprofile
❯ cd ~/powerlevel10k
❯ ls
LICENSE                powerlevel10k.zsh-theme
README.md            powerlevel10k.zsh-theme.zwc
config                powerlevel9k.zsh-theme
gitstatus            powerlevel9k.zsh-theme.zwc
internal            prompt_powerlevel10k_setup
powerlevel10k.png        prompt_powerlevel9k_setup
❯ git diff

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I did this and when I ran git diff nothing happens

formal schooner Jul 31, 2020, 10:59 AM

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Do it only if the problem starts to happen again

main olive Jul 31, 2020, 10:59 AM

#

What will that tell me?

formal schooner Jul 31, 2020, 10:59 AM

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It will tell you if something changed in those files

#

For now it seems to be fixed, so there's no way to diagnose what happened

main olive Jul 31, 2020, 11:00 AM

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Ok, thanks. Would it tell me what changed those files?

formal schooner Jul 31, 2020, 11:01 AM

#

No

#

But if we can see what changed that can help

#

It might also be some program modifying the cache

#

Which is harder to find

#

Either way, if the problem doesn't happen again then don't worry about it

main olive Jul 31, 2020, 11:02 AM

#

So out of the owners suggestion of what happened we have ruled out the first once since I don't have zshenv and zprofile?

Something on your machine has created either ~/.zshenv or ~/.zprofile with bad content.
Something on your machine has corrupted files in ~/powerlevel10k.
Something on your machine has corrupted files in ~/.cache.

#

I got zprofile.bak content ```

Setting PATH for Python 3.8

The original version is saved in .zprofile.pysave

PATH="/Library/Frameworks/Python.framework/Versions/3.8/bin:${PATH}"
export PATH

Your previous /Users/useruser/.zprofile file was backed up as /Users/userjaii

n/.zprofile.macports-saved_2020-06-23_at_20:51:27

MacPorts Installer addition on 2020-06-23_at_20:51:27: adding an appropriate PP

ATH variable for use with MacPorts.
export PATH="/opt/local/bin:/opt/local/sbin:$PATH"

Finished adapting your PATH environment variable for use with MacPorts.

"~/.zprofile.bak" 14L, 544C

Setting PATH for Python 3.8

The original version is saved in .zprofile.pysave

PATH="/Library/Frameworks/Python.framework/Versions/3.8/bin:${PATH}"
export PATH

Your previous /Users/useruser/.zprofile file was backed up as /Users/useruser/.zprofile.macports-saved_2020-06-23_at_20:51:27

MacPorts Installer addition on 2020-06-23_at_20:51:27: adding an appropriate PATH variable for use with MacPorts.

export PATH="/opt/local/bin:/opt/local/sbin:$PATH"

Finished adapting your PATH environment variable for use with MacPorts.

#

No zshenv or ~/.zshenv.bak but I have a zprofile.bak

#

Which zprofile was probably moved to my running exec zsh -fc '{ rm -rf -- ~/powerlevel10k ~/.cache/p10k*(N); mv ~/.zshenv ~/.zshenv.bak; mv ~/.zprofile ~/.zprofile.bak } 2>/dev/null; git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ~/powerlevel10k; exec zsh'

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@formal schooner

formal schooner Jul 31, 2020, 11:06 AM

#

I see

#

I don't see a problem there either

#

It is the 2nd or 3rd option

main olive Jul 31, 2020, 11:06 AM

#

So for now can we ~~~/.zshenv ~~or ~/.zprofile as the cause of problem?

#

= edit no zshenv file is there

formal schooner Jul 31, 2020, 11:07 AM

#

Correct. I believe it was caused by corrupted files in ~/powerlevel10k or in ~/.cache

main olive Jul 31, 2020, 11:08 AM

#

/Users/useruser/.cache/p10k-instant-prompt-useruser.zsh:local:28: key: inconsistent type for assignment

_p9k_dump_instant_prompt:217: parse error near `}'
_p9k_dump_instant_prompt:zcompile:331: can't read file: /Users/useruser/.cache/p10k-instant-prompt-useruser.zsh
_p9k_dump_state:53: parse error near `)'
_p9k_dump_state:zcompile:23: can't read file: /Users/useruser/.**cache**/p10k-dump-useruser.zsh```

#

This mentions cache

#

Why?

#

The cache is boldened by ** by me

formal schooner Jul 31, 2020, 11:09 AM

#

p10k apparently puts files there

#

It probably pre-generates them to speed up the prompt

main olive Jul 31, 2020, 11:09 AM

#

What do you think is more likely? something corrupted files in ~/powerlevel10k or ~/.cache ??

formal schooner Jul 31, 2020, 11:10 AM

#

Cache

#

Very strange problem though

main olive Jul 31, 2020, 11:10 AM

#

Then how did running what the owner sent me fixed it?

#

Didn't that just reinstall powerlevel10k?

formal schooner Jul 31, 2020, 11:11 AM

#

Because the cache was probably regenerated by p10k

#

But that is a good point

#

Very hard to say

#

All i can say is, be careful running commands that automatically modify files for you

#

I dislike commands like that

main olive Jul 31, 2020, 11:11 AM

#

All i can say is, be careful running commands that automatically modify files for you
@formal schooner Like what?

formal schooner Jul 31, 2020, 11:12 AM

#

Conda init, for example

#

And it looks like macports did it too

main olive Jul 31, 2020, 11:13 AM

#

But doesn't it kind of just add itself to the files, why would it mess up the file?

#

conda init or macports

formal schooner Jul 31, 2020, 11:13 AM

#

I don't know, I never saw this happen

#

It is an unusual problem

#

I think you should just not worry about it

#

Put zprofile back

#

If the problem happens again, do the git diff

#

And @ me with the output

main olive Jul 31, 2020, 11:15 AM

#

And since we have come to the conclusion that most probably cache was corrupted and not powerlevel10k since the cache was probably regenerated by p10k once I ran owners command, what generally corrupts cache?

formal schooner Jul 31, 2020, 11:15 AM

#

Otherwise I don't think we can learn anything else

#

I have no idea

main olive Jul 31, 2020, 11:15 AM

#

Put zprofile back
@formal schooner Why and by what command?

formal schooner Jul 31, 2020, 11:16 AM

#

You ran mv ~/.zprofile ~/.zprofile.bak right? So move it back to its old name

main olive Jul 31, 2020, 11:16 AM

#

So mv ~/.zprofile.bak to ~/.zprofile ?

formal schooner Jul 31, 2020, 11:17 AM

#

Yes. It looks like macports has code in there

main olive Jul 31, 2020, 11:17 AM

#

So running this might make the issue happen again and if so I have to run git diff?

formal schooner Jul 31, 2020, 11:19 AM

#

I don't think zprofile caused the problem. I just want to make sure you don't break something else by removing a file you need.

#

But yes. If the problem happens again, do the git diff

main olive Jul 31, 2020, 11:19 AM

#

I restarted terminal. Moving zprofile back from zprofile.bak to zprofile did not cause any issue at all

#

@formal schooner Also is it possible that my issue was a one of problem that maybe accidentally in vim I manually modified the file yesterday?

formal schooner Jul 31, 2020, 11:20 AM

#

Yes

#

That was my first thought

main olive Jul 31, 2020, 11:21 AM

#

Which file most likely I modified?

formal schooner Jul 31, 2020, 11:21 AM

#

The one with the syntax error, in cache

#

Maybe a file in the p10k dir itself

main olive Jul 31, 2020, 11:28 AM

#

/Users/useruser/.cache/p10k-instant-prompt-useruser.zsh:local:28: key: inconsistent type for assignment

_p9k_dump_instant_prompt:217: parse error near `}'
_p9k_dump_instant_prompt:zcompile:331: can't read file: /Users/useruser/.cache/p10k-instant-prompt-useruser.zsh
_p9k_dump_state:53: parse error near `)'
_p9k_dump_state:zcompile:23: can't read file: /Users/useruser/.**cache**/p10k-dump-useruser.zsh``` This file in cache /Users/useruser/.cache/p10k-instant-prompt-useruser.zsh   in cache?

#

Maybe a file in the p10k dir itself
@formal schooner Yes but didn't you say cache is more likely than something in p10k directory since more likely some program or me by mistake modified cache but except now I have never ever visited p10k directory

#

Right?

formal schooner Jul 31, 2020, 11:29 AM

#

Programs are more likely to mess with cache than other directories

#

But both are unlikely and i am only able to speculate

#

It's more likely that you accidentally opened and edited a file

#

I don't have any idea what file

main olive Jul 31, 2020, 11:33 AM

#

Programs are more likely to mess with cache than other directories
@formal schooner Yes, specially since macs are locked down well enough

#

Could it also be a one off thing that a program/software for the first and last time accidentally messed with my cache?

formal schooner Jul 31, 2020, 11:42 AM

#

Maybe

main olive Jul 31, 2020, 12:40 PM

#

Could it also be a one off thing that a program/software for the first and last time accidentally messed with my cache?
Likely?

#

@formal schooner

main olive Jul 31, 2020, 1:24 PM

#

@formal schooner Do respond when you are done with . work. Thanks

tender plinth Jul 31, 2020, 2:04 PM

#

Hello , I just installed irccloud from sudo snap install irccloud on my ubuntu 20.04 , the gui wasnt opening so I tried opening from /snap/bin/irccloud but it gives me segmentation fault

[1]    259646 segmentation fault (core dumped)  /snap/bin/irccloud```
any ideas on how to fix it would be appreciated , thank u

formal schooner Jul 31, 2020, 2:44 PM

#

@main olive that's my guess, yeah. but really it's just a guess

main olive Jul 31, 2020, 2:47 PM

#

So your guess is that it is likely that is was a one off thing that a program/software for the first and last time accidentally messed with my cache?

formal schooner Jul 31, 2020, 3:03 PM

#

that, or you opened the file and accidentally edited in vim