unix

[opaque ginkgo]

@plush vigil

[plush vigil]

@opaque ginkgo it still defaults to 3.8.8 64-bit

I tested it out in PyCharms and I got the correct version. I don't know what's specifically going on with VSCode, but even though I couldn't get it to work, I appreciate the time you took to try and help

[amber garnet]

You can switch it by using update-alternatives

[plush vigil]

sorry for the newbie question, but where would I enter that

[amber garnet]

In terminal 🙂 Which distro are you using?

[plush vigil]

I'm on pop_os

this is what I'm getting when I input that

[amber garnet]

sudo update-alternatives --config python3

https://stackoverflow.com/a/55962058

[plush vigil]

I'm getting a error: no alternatives for python3

[wise forge]

which python3.9 ?

/bin or /usr/local/bin is probably having it

[plush vigil]

I tried that but it still wouldn't let me select it.

when I type in ```/usr/bin/python3.9

it tells me to select an interpreter (vscode)

I tried to manually look for it too, through the interpreter browser on vscode, and I can't find python3.9 in /usr/bin/

outside of vscode I can find it

but when I'm searching for it in vscode, this is what I see

[dense perch]

Hey Everyone,

I am trying to use sh file . Each row has different progress and sometimes that process is failing and I am getting syntax error,when I try again it works so whats whats solution for it

[olive ice]

Well I’m very smart running everything as root and saying I run everything as root safe

[olive ice]

I’m too lazy to make another usr

[formal schooner]

!past show the file and the errors

[shy yoke]

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]

ayo anyone here know how to unzip a whole directory of zips using 7z cli

[olive ice]

Install p7zip and do p7zip -d file.7z

Now your files are decompressed

[barren temple]

Something like find path/to/your/zips -name \*.7z -exec command_to_unpack_an_archive {} \; # {} gets replaced by file name.

[olive ice]

Anyone know how to loop in a video in mpv yes you do —loop

[main olive]

Sorry i dont know

[tiny lava]

What IP are you being assigned dynamically?

where it works

[spiral pecan]

how do I edit a shell script using python ?
I only want to add something in my shell script but I need to use python to automate it

[opaque ginkgo]

why do you need to automate that?

this sounds like an xy problem

what's your actual issue?

@spiral pecan

[spiral pecan]

I need to make some discord bots at the same time with the same code. So, with gnome terminal, I wanted to make a bash script that launch the same file with different arguments (the bots tokens) in differents gnome terminal tab

[opaque ginkgo]

and why can't you just use a loop?

idr the syntax, but bash has arrays

[spiral pecan]

how ? because if I don't use a bash script, I will must to simulate that I am a human

like pressing Maj + Ctrl + T to open a tab

[opaque ginkgo]

or just pass it as an arg/env var to your bash script

[spiral pecan]

I already have this script. But my editing python would be to add something new after (a new --tab.....)```
gnome-terminal --tab --title="tab title" -e "bash -c 'a command; $SHELL'"

[wise forge]

Use jinja2 templating library, it is the best painless way for file forming

Or yeah, just pass arguments to shell script. It should be better if u can

If you need to just launch script command directly from python...

os.system(f"Your command {your_additions}")

[formal schooner]

something like this?

while read -r bot_name bot_token; do
  gnome-terminal --tab --title="$bot_name" -e "./run-bot $bot_name $bot_token"
done < ./bot-tokens.txt

@wise forge use subprocess.run, os.system is effectively deprecated

[wise forge]

Isn't it not showing output by default? 🤔

[formal schooner]

by default the output it sent to stdout and not captured in python

with open("./bot-tokens.txt") as fh:
    for line in fh:
        bot_name, bot_token = line.strip().split()
        subprocess.run([
            "gnome-terminal",
            "--tab",
            f"--title={bot_name}",
            "-e",
            f"./run-bot {bot_name} {$bot_token}"
        ])

[spiral pecan]

how can I close a gnome-terminal opened with python ?
I tried this but it didn't work :

import subprocess, time, os, signal
process = subprocess.Popen(["gnome-terminal -e bash"],
                           stdout=subprocess.PIPE,
                           shell=True,
                           preexec_fn=os.setpgrp)
time.sleep(2)
os.killpg(os.getpgid(process.pid), signal.SIGTERM)

[spiral pecan]

it works for terminator and other programs, but not gnome-terminal

[fallen flint]

if [ python3 manage.py showmigrations | grep '\[ \]' ]; then

Anyone know why this is wrong syntax?

Is bash help allowed on this channel? Couldn't tell from the description

[formal schooner]

Remove the outer []s

[] and [[]] is used for doing certain kinds of comparison operations and returning 0 or 1, it's not part of if syntax itself

if python3 manage.py showmigrations | grep -q '\[ \]'
then
  ...
fi

[fallen flint]

ohh that makes sense, ty!

[formal schooner]

if python3 manage.py showmigrations | grep -Fq '[ ]'
then
  ...
fi

[fallen flint]

what is -F for?, I searched up in the man page and i didn't understand what interpreting a pattern as a fixed set of strings would do in this case

[formal schooner]

It looks like you're searching for the fixed string [ ], no?

"Fixed string" as in "not regex, just a string"

[dense perch]

do
    if [${i} -gt 9]
    then
        echo 0000$i
    else
        echo 00000$i
    fi
done

Why its not working?

[amber garnet]

I always put a space after [ and before ]

[dense perch]

ye worked thank you

That's horrible syntax 😄

[amber garnet]

Yeah 😂

[dense perch]

How to do it in syntax then ;

'/home/bulute/2021-07-20_07-05-01-50FOPvIEWVpD53ri-00000i.mp4'

i will change here

$i will change

0000i.mp4 as you see

how to do it in shell

[amber garnet]

"/home/bulute/2021-07-20_07-05-01-50FOPvIEWVpD53ri-00000${i}.mp4"

I like to write it in this way

[dense perch]

Thanks !

[amber garnet]

You're welcome!

[formal schooner]

note that in bash you might want to use [[ instead of [ . the [ command is a separate program (alias for test), whereas [[ is a builtin that has more features. maybe bash offers [ as a builtin to shadow [[, but it's usually good practice to distinguish between the two

seq 0 33 | while read -r i
do
  printf '%05d\n' $i
done

@dense perch ☝️

that's how i'd do it

[dense perch]

ty

btw why I can not have any local variable?

./main.sh: line 1: file_path: command not found

did I do something wrong here?

Sorry I am quite rookie about shell scripting but its really cool !

[queen lance]

For Linux systems, are there some that use file extensions like windows. I.e. if opening .txt file use default text editor to open.

[queen lance]

What is your code and what are you trying to do?

[dense perch]

I am just automate stuff with copy file from remote server

for example I want set a variable for my path

whenever I set a variable its not workign

[queen lance]

Why don't you show your code? Kind of hard to guess what your code/problem is.

[dense perch]

I can show but its not point here even when I do for example;

a = test
echo $a

its not working even 😄

[queen lance]

?? It depends on your code...

Your first line of code should be #!/bin/sh

If you don't already know this

[dense perch]

didnt know well

ty

[queen lance]

This is called a shebang and let's Linux know what interpreter to use to run your scripts. You choose /bin/sh since it's a generic shell script.

[dense perch]

ty

[wise forge]

yes.

txt is opened with default notepad, i have Kate for example ;b

it depends on used GUI though

and default application settings in it

even one linux, like Ubuntu, has 4 GUI types to choose and each one is quite different from others

Gnome, XFCE, KDE for example

you can choose which file manager opens folders (in windows you had only explorer.exe)

what is your video program for different extensions

default web browser, default terminal emulator and email client and e.t.c. 😉

partially extension endings are just an agreement though

like shell script should be .sh

anyway, I like KDE Plasma

it is super comfortable

and having as default terminal multiplexor is quite good

[queen lance]

Oh cool. So if a .txt file is an executable on the command line, then will it execute or open a text editor for it?

[wise forge]

🤔 good question

lets test it

[wise forge]

yes, if you use KDE and having file manager Dolphin, then .txt file is opened with your default notepad even if it has executable permissions

but if we rename to .sh, it is offered for executing

there is no ambiguity in console linux though, because we are always explicit in how we open file 🤔 so we could execute even .txt file

./123.txt executed shell script in console, and nano filename will open as text even executable files

[queen lance]

Thanks for checking

[wise forge]

u a welcome

anyway, the rules of opening are highly likely defined by file manager btw, since it is providing GUI for the folders

[formal schooner]

Variable assignment cannot have spaces around = in a shell script, maybe that is your problem

[quasi warren]

diff does work on excel files?

I have tried it but I dont think it works.

[queen lance]

What does "work" mean?

You may want to convert to simpler data format like csv if you want to compare text

[quasi warren]

God why didnt I think of it lol. Yeah I think diff would perform diff on two csv files. Thanks

By work, I meant if it would perform diff on excel. but it didnt.

csv works!!

[queen lance]

Great 👍

[formal schooner]

@quasi warren there are standalone tools that can diff xlsx files, but not the standard diff utility

if you're asking about git, you can configure git to use an external tool to diff certain kinds of files

[main olive]

yo

[quasi warren]

I think I came across an implementation that was done in Java that performs diff on excel files. Converting the xlsx to csv worked because I just wanted to see if the excel files looked the same before and after I refactored code.

[left olive]

Hi guys, we have a "-x" debug option for bash do we have similar option in python?

[warped nimbus]

No but you can run with a debugger and step through each line which is basically the same thing but with some extra manual effort

[opaque ginkgo]

its much more useful than -x though

especially if you're using an ide

[untold abyss]

snipper copied of SE

%%bash
paste <(printf "%s\n" *) <(printf "%s\n" * | shuf) |
  while IFS=$'\t' read -r from to; do mv -- "$from" "$to.new"; done

for f in *.new; do mv -- "$f" "${f%.new}"; done

apparently, it shuffles files in a folder

*folder

my question is where the hell is the path lol

[lavish storm]

!rule 7

[shy yoke]

Rules

7. Keep discussions relevant to the channel topic. Each channel's description tells you the topic.

[carmine aurora]

whoops

wrong chat

[main olive]

!rule 7

[shy yoke]

Rules

7. Keep discussions relevant to the channel topic. Each channel's description tells you the topic.

[amber garnet]

You can use #bot-commands channel to deal with those commands

[finite crater]

So... I would like to ask a question related to unix system permission configurations, and if what I have done is very bad. It has nothing to do with Python.

The reason I have done this (look at the permissions and owners of the shown directories) is the difficulty of needing elevated permissions to call npm but having to avoid that at the same time.

... node is irrelevant. I want to know if this is dangerous. is /usr and /usr/local a safe place for this config. I just noticed that

What makes me concerned is I thought it was a safe spot for that config, but then i saw this

lrwxrwxrwx    7 root 15 Sep 16:41 bin -> usr/bin
lrwxrwxrwx    7 root 15 Sep 16:41 lib -> usr/lib
lrwxrwxrwx    9 root 15 Sep 16:41 lib32 -> usr/lib32
lrwxrwxrwx    9 root 15 Sep 16:41 lib64 -> usr/lib64
lrwxrwxrwx   10 root 15 Sep 16:41 libx32 -> usr/libx32
lrwxrwxrwx    8 root 15 Sep 16:41 sbin -> usr/sbin

and not sure

[queen merlin]

for which config?

And you probably don't want to be putting apps and their configs into /usr or /usr/local unless you want them to be there for the whole server.

But I'm not exactly sure what you're asking tbh

[cinder crystal]

anybody good with kali linux

i'm trying to download kali linux

and i got this error

it says "An installation step failed. You can try running the failing item again from the menu, or skip it and choose something else. The failing step is: select and choose software

man i've tried running the code again and again

but it isn't working

even when i skip

like man this is really annoying

it took long enough to actually download the right kali linux file

if somebody could help me troubleshoot this, i would gladly appreciate it

[olive ice]

Don’t install kali Linux

Use a different distro

[cinder crystal]

really?

why?

@olive ice

[olive ice]

Yes because kail Linux is for pen testing

[cinder crystal]

i am trying to do pentesting

[olive ice]

It should be run in vm

[cinder crystal]

i am in a virtual machine

that's the thing 😂

[olive ice]

Oh

[cinder crystal]

I'm using virtual box

[olive ice]

Oh ok I thought you were doing real hardware

Well you still got the iso

Go checksum the iso

[cinder crystal]

checksum?

what does that mean

holy

everything's failing 😦

[lavish storm]

pentesters should know what checksum is

[cinder crystal]

i did everything correct

[lavish storm]

😉

[cinder crystal]

i just started doing this stuff, I haven't even learned how to use the bash terminal

that's why i'm installing a kali linux vm

[olive ice]

Anyone got the Linux mint checksum thing website link

https://linuxmint-installation-guide.readthedocs.io/en/latest/verify.html found it

[lavish storm]

i love linking the documentation but alas

mods did not appreciate that when i did it last time

called it against CoC

[lavish storm]

it's in the documentation but i will paste it here

$ shasum -a 256 kali-linux-2021.3-live-amd64.iso

assuming kali-linux-2021.3-live-amd64.iso is what you downloaded

[cinder crystal]

i see

[lavish storm]

and see to it that it matches the signature displayed in the sha256sum column on the official download page

[cinder crystal]

wait

i used 2021.2

[lavish storm]

since 2021.2 is outdated you're going to have to do a bit more digging to look for the correct sum

[cinder crystal]

holy 😔

i see

man

thanks

i'll work more on this tommorow

i spent wayy to long on this

[lavish storm]

is there a reason you're using 2021.2 and not 2021.3?

[cinder crystal]

https://www.youtube.com/watch?v=ZXlDkMC9N34

i used the download link from the description of this vid

but i guess it was outdated

[lavish storm]

the official documentation is rarely outdated 😉

[cinder crystal]

i see

this is pretty tough man UGHHHHHH 😂

i did exactly everything that video told me to do

[lavish storm]

yes, especially if you're "pentesting" with no prior knowledge let alone the basics of using linux systems

[cinder crystal]

every single bit

i mean, all i'm trying to do is get used to using a linux

this is my first time

[lavish storm]

kali is an awful choice for a first timer distro

[cinder crystal]

woah really??

I see

you know the freecodecamp video that teaches pentesting

[lavish storm]

anyways that video is almost 11 months old

[cinder crystal]

it uses kali

[lavish storm]

the official documentation was updated 8 days ago

[cinder crystal]

dng

dang*

wait i'm curious

do all distros use the same bash commands?

@lavish storm

[lavish storm]

no

[cinder crystal]

i see

[lavish storm]

i mean if you install bash in your distro then sure

but not all distros use bash as default

[cinder crystal]

i see

[lavish storm]

bash is one of many shells

there's fish, zsh, ksh etc

[cinder crystal]

thank you man

wait

what is the best distro for a beginner using linux?

[lavish storm]

i'm afraid there's no "the best distro"

you have the freedom to choose which distro you like

many start with pop os!, ubuntu, manjaro, or fedora

they are all easy to use and extremely beginner friendly, the key difference lies in their package managers and dwm etc

all except manjaro use GNOME as default

whereas manjaro offers XFCE, GNOME etc

pop os! and ubuntu use apt as their key package managers, where pop os! also uses flatpak and ubuntu uses snap

fedora uses dnf

and manjaro uses pacman

[cinder crystal]

wow

i'll do some research on those distros

[lavish storm]

sure

[cinder crystal]

I watched this video on bash and it didn't seem too bad, there was even a popular tutorial on youtube about how to properly use the bash terminal

[lavish storm]

i see

if you like videos, check out learnlinuxtv

[cinder crystal]

I'll do some more troubleshooting tommorow and hopefully I'll successfully work it out

[cinder crystal]

thanks for the recommendation!

[lavish storm]

https://www.youtube.com/watch?v=lvSoxOMg5_c&list=PLT98CRl2KxKHaKA9-4_I38sLzK134p4GJ this entire playlist is a gem

[cinder crystal]

i see

I'll check it out!

[lavish storm]

have fun and enjoy linux

[cinder crystal]

yeah

😄

thanks

[ionic goblet]

Hello, running htop gives several results, the top result is taking around 150% cpu usage, how is that even possible for it to exceed 100%? its per-cent after all? By researching it, I didint understand much, how do i view true cpu usage of a process like it displays in windows in the task manager?

[lavish storm]

100% usage equals to a thread being used to full

i.e. 8 threads being used to full would equate to about 800%

[ionic goblet]

Thanks

[wise forge]

how to have systemd daemon with default environment variables of a user?

by default its having almost zero environment variables

[amber garnet]

Afaik systemd daemon is using different user than yours

[vagrant fern]

if you are using the systemctl --user user-specific daemon instead of the system one (pid 1), you may be able to get away with running your app through an instance of /bin/bash or whatever your login shell is, as it should read out its startup files and your variables from in there

[worn tiger]

Anyone around that can give me a hand with a WSL2 / netowrking issue?

Im just attempting to get a desktop environment operational via Vcxsrv X server(windows side) and xfce4 on the linux side

i know its not necessarily python related, but this would be a big help !

[mortal jasper]

it's definitely unix-related 😄

[olive ice]

No point using whatever it name is you are better off installing a random distro and running it

[main olive]

start off with ubuntu, its nearly impossible to break

[opaque ginkgo]

inb4 they rimraf root

[olive ice]

Then do Sudo passwd

Wow you can now change root passwd

And access root

[opaque ginkgo]

by root, i mean "/"

[wise forge]

I would highly recommend Kubuntu

same official ubuntu, but with much more friendly graphical interface KDE

even my non programming colleague (designer) is happy to use it

[green gulch]

Pop OS is also very popular as a beginner Linux distro

[kind coral]

unless you uninstall python, learnt that one the hard way

[main olive]

Who uninstalls python? It's an important programming language in package managers, most apps

[amber garnet]

The unix time stamp is a way to track time as a running total of seconds. This count starts at the Unix Epoch on January 1st, 1970 at UTC.
https://www.unixtimestamp.com/

[sonic sable]

backup.sh file:
sudo touch mine.txt

crontab:
48 4 * * * sudo bash /home/backup.sh

i dont know what i am doing wrong. crontab is not working. tested manually, .sh script is generating text file but crontab fails....

[opaque ginkgo]

doesnt sudo require user input

if you're already running as root, you dont need sudo

[formal schooner]

i don't think it requires user input if you configure the sudoers file in a particular way, with NOPASSWD

[olive ice]

NOSECURITY

[oblique pulsar]

Hello, I am getting an SSL error on my Django logs...which room should I go for help?

[vagrant fern]

#web-development is a good idea

[oblique pulsar]

thanks @vagrant fern

[main olive]

How do i take a screenshot of a window on xorg in python 3

i have scrot installed

i been trying every method

but i couldn't find a single one that can grab a whole window

debian bullseye

[olive ice]

Well xfce4-screenshot application exists I think what else exists that lets you take screenshots

[tough sky]

hello i got into linux recently and im trying to set up vscode and some stuff

when i try to run a python script with the module keyboard

even tho i did pip install keyboard i get an error

this is the error: Traceback (most recent call last): File "/home/me/Desktop/scripts/key.py", line 1, in <module> import keyboard # using module keyboard ModuleNotFoundError: No module named 'keyboard'

[dark rivet]

did you install it

[tough sky]

yes i did pip install keyboard

and im not getting a underline on code it self or smth

also i need to run it as sudo for some reason else im getting more errors

[olive ice]

Recommend you learn vim or emacs or both

[dark rivet]

or...vscode? lol

[olive ice]

That doesn’t exist

[opaque ginkgo]

dont

[olive ice]

Run everything as root is totally very safe

I can’t be bothered making a usr so

[amber garnet]

Nope, it isn't

[olive ice]

Ok well I can rm -rf /* my system without Sudo so running everything as root safe

[dark rivet]

pfft wdym, i don't make errors, so it's safe /s

[fallen panther]

i'd advise caution throwing around advice like that. you may be able to navigate being a root user safely, but it's objectively not good advice in general

so just for the sake of others reading this conversation, perhaps clarify or add suitable disclaimers at least

[ionic goblet]

Ubuntu comes default python 2. uninstalling it will break the system and people do it because they want the newest, latest and greatest cutting bleeding edge version

[dark rivet]

3.8 now

[olive ice]

Well good I uninstalled python

[solemn snow]

Umm, what does this mean?

[formal schooner]

which part?

[solemn snow]

The last one

[formal schooner]

@solemn snow it's saying "the file has unsaved changes, so i won't let you exit unless you use ! in the command"

e.g. you can do q! to quit without saving, or similar commands like bd!, close!

[lucid ridge]

gotta type : to get that prompt too

[cerulean wolf]

looking to figure out how I could check if a specific process id is active, and if it isn't, to execute the command afterwards in a linux terminal. having trouble chaining multiple background commands. i'd rather just start one and check for it's activity every few minutes. would this be possible?

[formal schooner]

ps accepts pids as arguments

Maybe it returns nonzero if one of them doesn't exist? Not sure. If not, you can parse the output with awk, cut, or the read builtin

[formal schooner]

Wdym "chaining background commands"?

[cerulean wolf]

well it seemed like && is used to queue commands, and singular & is used to make it run in the background. maybe i just mistyped at the time

[runic quarry]

@cerulean wolf If you want to get the PID of the last ran command you could use something like this:

command &
pid="$$"

Why not just wait for it to finish normally and then run another command though?

[cerulean wolf]

stuff such as video conversions. i could handle a few more during sleep

[runic quarry]

Why can't that be handled via normal commands?

[cerulean wolf]

i used ffmpeg often for a vps i use

[runic quarry]

It sounds like it would

Would something like this not work?

ffmpeg blah blah blah
blah blah more commands

[formal schooner]

&& runs commands sequentially only if the first one succeeds. & starts a background process

[cerulean wolf]

i have much to learn 😭

[formal schooner]

Read the man pages, one section at a time

[cerulean wolf]

there's a man page for &?

[formal schooner]

Patience above all else

No, but your shell has a man page

You have a lot to learn, but so does everyone, and a long life to learn it

Keep a notebook too

Less trivia in brain = more room in brain for actual thinking

Eventually the trivia becomes second nature, then you start building new knowledge on the old stuff

Etc

[cerulean wolf]

is there a way to access all of the man pages?

i can't even quote correctly 😂

man basically asks me what i'm looking for and doesn't give anything by default it seems

[cerulean wolf]

i'm not sure, because i have to surppress the messages just so it can run in the background. or else it autoscrolls

info bash 🤔

thanks! 🙇

[formal schooner]

Yeah GNU projects sometimes use the "info" system which is their weird man alternative

[cerulean wolf]

i notice it seems to work different between os as well

[formal schooner]

More emacs-ey idk

[cerulean wolf]

in this situation if i'm looking to queue video conversions overnight, would a bash script be better for a set number of conversions?

[past phoenix]

hey i am stuck with this buggy background and all desktop icons disappeared to

[past phoenix]

My Hardware is 
CPU: AMD Ryzen 5 2600 Six-Core Processor
RAM: 16GB Running at 3400Mhz
GPU: GeForce GTX 750 Ti (Nvidia Driver: 470.57.02-2) (nvidia-cuda-toolkit: 11.2.2-3)

I am dualbooting with Windows 10.

The Problem did ocurr as i put my pc on Hibernation
After it wake up, i was glitchy like this and all programs (FileExplorer) where still open

What i already tried:

    Rebooting                                      | Nothing Changed (FileExplorer still open).
    Hibernate again                                | Nothing Changed.
    Disabled "Save sessions for Future Logins"     | Problem still ocurrs but the FileExplorer closed.
    Logged out and in again                        | Nothing Changed.
    Created a new user and logged into it          | Background behaved as normal nothing whierd.
    Logged back into the old user                  | Problem was gone for 2 mins and the normal 
                                                   | Background Image where also back but after the 2mins the 
                                                   | background became unresponsive and all icons didnt work.

[lavish storm]

the official explanation is that you probably shouldn't use kali if you don't know how to fix this sort of problem

since i'm nice, i'm going to ask anyways - what de/wm are you using

if there's any errors then usually your de/wm will leave an error log

[past phoenix]

sry what do you mean with de/wm

[lavish storm]

desktop environment/window manager

[past phoenix]

uff

how can i find out?

[lavish storm]

try ls /usr/bin/*session

[lavish storm]

xfce gotcha

and again, despite how cool it seems using Kali on a bare metal as a daily driver like that is not recommended according to Kali devs

[past phoenix]

hmm

i guess i try my luck on a other linux dist

but thanks for the advice

[opaque ginkgo]

hm, dont a lot of people dualboot kali?

obviously using kali only is a bad idea

but dualboot should be fine as long as you only use it for kali-specific tasks

though installing tools manually on a different distro is always an option

[lavish storm]

Not my words.

[formal schooner]

can you be a bit more specific about the logic you need to implement? use bullet points or psuedo-code

[cerulean wolf]

maybe something like this?

run script

check for ffmpeg process
if exist
wait x minutes
if don't exist
do new ffmpeg commands (possibly from a txt file with multiple )

test.txt

ffmpeg -commands...
ffmpeg -commands...

[formal schooner]

i see. do you have to have this kind of "polling" logic? what if you had a script that just waited for the job to be done?

you can use the wait and jobs builtins to manage this kind of thing

[cerulean wolf]

i don't know what i need to have tbh. i'm just trying to figure out what i could need to get the most out of containing the process while unattended for hours since there's no gui i can use to queue. if jobs is the way then i will look more into it. i have very little knowledge of linux stuff

[formal schooner]

so what do you actually need to do? just run a process, and then run other processes when it's done?

[cerulean wolf]

i've been trying to figure out how to queue ffmpeg commands after the one before it has finished converting the video

that's why i thought to include all of the needed commands in a list and figure out how to execute them one by one until the last line is reached as long if there's no ffmpeg process available.

[formal schooner]

you could just run it all in a script, no?

#!/bin/sh

ffmpeg -command 1 && \
  ffmpeg -command 2 ... && \
  ffmpeg -command 3 ...

then run the script in the background

you could also use a makefile if the process involves creating new files

for example, this Makefile converts a directory full of .mkv files into .mp4 files and then concatenates them all into one big .mp4 - silly, but hopefully illustrative

mkv_files := $(wildcard *.mkv)
mp4_files := $(patsubst %.mkv,%.mp4,${mkv_files})

.PHONY: all
all: _all.mp4

# Convert each file MKV -> MP4
%.mp4: %.mkv
    ffmpeg -i $@ -c copy $<

# List all the MP4 filenames in a file
_mp4s.txt: $(mp4_files)
    echo $^ | xargs -n1 > $@

# Concantenate together every file named in the file
_all.mp4: _mp4s.txt
    ffmpeg -f concat -safe 0 -i $< -c copy $@

so you would run make all and it would create the _all.mp4 file, without you needing to explicitly invoke the intermediate steps

(note: the above Makefile only works with GNU Make, not BSD make)

or i guess -i accepts a glob, so

mkv_files := $(wildcard *.mkv)
mp4_files := $(patsubst %.mkv,%.mp4,${mkv_files})

.PHONY: all
all: _all.mp4

# Convert each file MKV -> MP4
%.mp4: %.mkv
    ffmpeg -i $@ -c copy $<

# Concantenate together every file named in the file
_all.mp4: $(mp4_files)
    ffmpeg -f concat -pattern_type glob -i './*.mp4' -c copy $@

[cerulean wolf]

that's a lot 👀
my knowledge of scripting in general is even lower than python so i find it even more confusing at times
ffmpeg -nostdin -loglevel error -i input.mp4 -vf scale=-1:540 -c:v libx265 -crf 18 -preset fast -c:a copy input.540p.mp4 &
is my command so new files are definitely created. could the make be ran in the background as well?

all the files are in one directory though so that seems like an even greater benefit

thank you. i must study this more as i don't understand much of it yet

[formal schooner]

it already is running in the background if you use &

let's say you wanted to run cmd1 and, on completion, run cmd2a and cmd2b in parallel, then run cmd3 when both of those are completed

with bash job control, you can do this

#!/usr/bin/env bash

# Exit the entire script if one command fails
set -e -o pipefail

# Run cmd1 in the foreground
cmd1

# Run cmd2a and cmd2b in the background, then wait for them both
cmd2a & pid2a=$?
cmd2b & pid2b=$?
wait $pid2a $pid2b

# Run cmd3 in the foreground
cmd3

if you also do set -x then bash will echo each command before it's run

so if you needed to do this as a nightly process on a linux machine, you could put it in ~/bin/video.sh and mkdir ~/bin/logs to hold the output logs.

then you can set up a cron job, with logging:

59 23 * * * /home/<username>/bin/video.sh >/home/<username>/logs/backup.log 2>&1

but if you're on linux with systemd you would probably want to use a systemd timer + service instead

[river topaz]

I tried doing brew install python@3.10 and brew upgrade python, neither of which worked. I'm fine with that fact and am fine waiting/installing from python.org but I was wondering why it's the case.

In particular this message which has peculiar indentation and hints to it existing, while not giving any directions on what's wrong or what I might want to do like homebrew usually does.

Maybe servers are just down and I'm thinking too much.

I have no idea how any of this works.

[weary blade]

hello

[formal schooner]

brew install python@3.10 worked for me, and now python3 is linked to 3.10 - try brew update, maybe something was wrong w/ the formula when they first published it

[cerulean wolf]

thank you @formal schooner

i'm looking to use this for my mentioned command before to convert all the files in a folder, but i can't figure out what to change yet while i'm still trying to get a hang of bash command stuff
running Debian GNU/Linux 9.13 (stretch)

[formal schooner]

so you want to run this whole multi-command process on each file?

put it into a script and then use the standard Find program to run it on every file in a given directory:

find ~/movies/unprocessed \
  -type f -name '*.mkv' \
  -exec ~/bin/process-video.sh {} \;

note the \; at the end - you need the ; to tell Find where the command ends, but you don't want your shell to think you're ending the command there, so you have to "escape" it with \ to tell the shell to ignore it, so that it can be sent to find as ;. kind of annoying syntax, but that's the way it is.

[river topaz]

It worked first try this time, I guess it just hadn't been updated or the servers were down from overloading or something like that.

[autumn lynx]

if my cronjob reads like so:

45 19 * * * . venv-shreddit/bin/activate && shreddit -c venv-shreddit/Shreddit/shreddit.yml what do I need to add to it for it write to a logfile with a date/time stamp?

[formal schooner]

you can do this with the ts tool from Moreutils:

#!/bin/sh

venv-shreddit/bin/shreddit \
  -c venv-shreddit/Shreddit/shreddit.yml \
  1> >(ts '%Y-%m-%d %H:%M:%S%z' >> shreddit.log) \
  2>&1

i recommend putting that into its own script instead of putting a big one-liner in cron

[autumn lynx]

thanks for the suggestion. turns out my script doesn't run properly anyway so think it's best I sort that out first 😩

[formal schooner]

you can also DIY that ts command with another script:

#!/bin/sh

current_timestamp="$( date +'%Y-%m-%d %H:%M:%S%z' )"

while read -r line
do
  printf '%s %s\n' "$current_timestamp" "$line"
done

note that you usually don't need to activate a venv, you just need to invoke the executable by its absolute path

[autumn lynx]

hmm so maybe my command is totally incorrect to begin with? im seriously losing it here haha

[formal schooner]

your command should work, i have no idea what shreddit is though

usually with cron don't you have to specify an absolute path?

[cerulean wolf]

not exactly. i was trying to figure out how to run ffmpeg -nostdin -loglevel error -i input.mp4 -vf scale=-1:540 -c:v libx265 -crf 18 -preset fast -c:a copy input.540p.mp4 & for every file in a directory. i won't be needing to join them together
#unix message is what i'm looking to modify but i'm not sure what exactly it is i need to modify according to my needed command

[formal schooner]

you don't need Make just to run one command on every file

i recommend GNU Parallel for this

first, put your command in a script, to make it easier to work with, e.g. something like convert-mp4.sh:

#!/bin/sh

# Save the first script argument to a variable
input="$1"

# Remove the ".mp4" suffix, then add ".540p.mp4"
output="${input%.mp4}.540p.mp4"

ffmpeg -nostdin -loglevel error \
  -vf scale=-1:540 -c:v libx265 -crf 18 -preset fast -c:a copy \
  -i "$input" "$output"

then you can run this script with parallel:

find ./stuff/videos -name '*.mp4' -print0 | parallel -0 sh ./convert-mp4.sh '{}'

parallel has good docs https://www.gnu.org/software/parallel/man.html

[cerulean wolf]

parallel seems very useful 👀

first time hearing about it. thanks for your recommendation

[formal schooner]

note -print0 and -0 to protect against malformed filenames

(it uses a special "null byte" to separate filenames instead of a line break)

and of course you could do this all without the script, but it's uglier

find ./stuff/videos -name '*.mp4' -print0 | \
  parallel \
    ffmpeg -nostdin -loglevel error \
    -vf scale=-1:540 -c:v libx265 -crf 18 -preset fast -c:a copy \
    -i '{}' '{.}.540.mp4'

hard to break this up so that it looks nice in discord

note the use of the {} and {.} placeholders as defined in the parallel manual

the find manual is quite extensive too https://www.gnu.org/software/findutils/manual/html_node/find_html/index.html

[shy yoke]

:incoming_envelope: :ok_hand: applied mute to @main olive until <t:1633496995:f> (9 minutes and 59 seconds) (reason: duplicates rule: sent 4 duplicated messages in 10s).

[main olive]

grub-efi-amd64-bin : Depends: grub-common (= 2.04-1ubuntu26)

yet the current installed version is
grub-common/focal,now 2.04-1ubuntu26 amd64 [installed,upgradable to: 2.04-20kali1]

[shut tartan]

i cant figure out this problem on my hw

i have to take the input of a file and output it to the console and also output the number of words right below it

i tried
input command | tee | wc -l

but its not working

[main olive]

wc -l prints the number of lines not words

also tee is mostly used for writing to files

[formal schooner]

"it's not working" is meaningless. you should explain what exactly is going wrong

[shut tartan]

its not outputting anything

actually it does output the wc number

[formal schooner]

you don't need tee

it is doing literally nothing for you here

[shut tartan]

okay

i need it to output the text from the find command and then pass it to wc in the same line

[umbral vault]

I'm not sure if you can do that

afaik, the whole purpose of the pipe character, it to redirect ALL output from the left operand, into input for the right operand...

even if you tried to put echo in front of the find, the output from that will still get redirected

[shut tartan]

okay

find /usr/bin/ -type f -name "a*" | tee /dev/tty | wc -l

this works

[bronze jackal]

What Linux distribution do you recommend for a beginner?

[amber garnet]

Ubuntu

[untold rain]

a

[main olive]

anyone know how to get unicurses on linux?

[swift pond]

https://i.gyazo.com/1876ebcb3cfda30df373065eaa0a235e.png

I'm looking for some sort of terminal like this

I'm looking for a terminal like tillux that can run on a server with no GUI

Anyone have any suggestions?

I want to run python programs in like...different windows

Right now, if I start a python program, I can't switch views to start another python program, if that makes sense.

[swift pond]

https://www.hamvocke.com/blog/a-quick-and-easy-guide-to-tmux/

tmux is the solution, for anyone who looks this up

[formal schooner]

i was just going to say, tmux

@swift pond https://cdn.discordapp.com/attachments/635625917623828520/772079549210951690/fbgrab_2020-10-31_084424.png i was using this setup for a while. linux framebuffer console only, no x11 or wayland

got kinda sick of it eventually but it was really nice and responsive

[solemn snow]

I just made changes, but why is it saying no write made since last change?

[lavish storm]

https://www.javamadesoeasy.com/2016/12/vi-error-e37-no-write-since-last-change.html

[solemn snow]

ye i got it

thanks though

[lavish storm]

👍

[median zenith]

So I had to go yo school at the middle of a software update and had no choice but to stop it and broke the system

I don't want to restore the old os but the whole pc is not booting, when I press the button it just keeps beeping in this loop
___ . _________ .

---.---------.

Feels like the pc is crying

It's an older pc

[swift pond]

linux framebuffer console only, no x11 or wayland

all this is new to me, but yes, tmux is very powerful. It's nuts how much more efficient I can be now

[swift pond]

What are you on now, for your servers?

[formal schooner]

Oh i still use tmux on servers. That screenshot was from my personal laptop

[latent lintel]

Hey, someone here knows how can I clean pip of python? I made a mistake of use python without virtualenv. I'm use Ubuntu.

[formal schooner]

apt purge and reinstall

[ancient quail]

When creating programs for Python for school, should I save them in usr/local/lib, usr/local/src, or somewhere else? I don't really want to make a custom home directory for my own programs, feels like there should be a recommended area.

[latent lintel]

Thanks 👍

[formal schooner]

A custom home location is perfectly reasonable. /usr is for the sysadmin, which might be you, but not you "all the time"

I use ~/projects for most of my stuff, so a i might save a project called Great Stuff in ~/projects/great-stuff

For things I install for general purpose use, i put them in ~/.local

So ~/.local/bin, ~/.local/lib, etc

[copper tangle]

I have written a Python program and want to now "install" it on my laptop. I usually start it from the console with (from venv) python main.py. But I want to add it to the start menu shortcuts(im using LXQt as a desktop enviroment).

Any best practices to follow or a point where I can start to learn how to do this?

(I do not want to bother with PyInstaller for various issues that causes with my Program)

[formal schooner]

You can make a desktop entry file to run it

https://wiki.archlinux.org/title/Desktop_entries

[tardy furnace]

If your program is for command line, just giving execute mode bit (using chmod +x) and adding #! will be enough.

of course you will have to put the script in /usr/local/bin or somewhere to use like other commands

[copper tangle]

Thanks for the help, I solved it earlier today using a desktop file

[jovial hill]

idk where the best place to ask is, does anybody know how to unpack a .pak file? i'm trying to find discord assets lol

[primal sierra]

apparently to google PAK files are usually renamed ZIP files

[primal sierra]

soo... in unix fashion you could do something like

cd dir/to/unzip/the/pak/file
unzip path/to/file.pak

[jovial hill]

yep

[primal sierra]

If you're on Windows, renaming the file to use a .zip extension instead of a .pak extension should work well enough to convince Windows to unzip it

[jovial hill]

but in this case it isn't

[jovial hill]

hmm

[primal sierra]

oh

[jovial hill]

guess i could try

my friend wasn't able to open on mac and i was too lazy to reboot

[umbral vault]

Question...
How can I get the last 4 files returned from ls without using head or tail?

Nvm... I think I made a solution

ls -r {[a-Z],[0-9]}{[a-Z],[0-9]}{[a-Z],[0-9]} | more -4

[lavish storm]

Seems like more effort

[opaque ginkgo]

more is cringe

use less

[umbral vault]

less was retuning all 8 🤷‍♂️

regardless of what options I passed it

[lavish storm]

your code didn't work on my system

[umbral vault]

?

[lavish storm]

better yet, why not just use pipe tail -n 4

[umbral vault]

Question said couldn't use head or tail

[lavish storm]

oh so it was for homework

gotcha

[umbral vault]

yea

I was wondering if anyone here understood what this question was asking 😅

[lavish storm]

can't say i've been asked homework questions on this channel before

[umbral vault]

😅 Sorry

[lavish storm]

no it's all good

just a bit surprised

for i. u could get away with using grep

$ ls | grep -E "^[a-zA-Z0-9]{3}$"

or something of that nature if you only want files that have three chars which are a-z, A-Z and 0-9

and also for showing the last four, you can do:

ls | grep -E "^[a-zA-Z0-9]{3}$" | sort -r | awk 'FNR < 5'

sort -r reverse sorts, then awk 'FNR < 5' to view the first four

as for the following questions, not sure what it means by "set on and off" but you can escape metacharacters with a backslash \

as for 2 ii) I presume it means %? the questions are poorly worded I must say

Hope that helps @umbral vault

[umbral vault]

Hey... Thanks alot 🙏

I hadn't seen the -E option before 🤔

[umbral vault]

for this, I got filec, which when used with the set and unset commands, toggles file completion

[lavish storm]

-E for extended so that you don't have to backslash every single bracket and symbol 😄

[umbral vault]

like a raw string?

I really appreciate the help 🙏

[lavish storm]

interesting, i would've thought it'd be shell dependent

[umbral vault]

We're using csh

[lavish storm]

can't say i've ever used csh

[umbral vault]

Ah... understood

[umbral vault]

this is givin me variable syntax

Guess it doesn't work in csh?

[lavish storm]

damn it works on both bash and zsh

i guess not

[umbral vault]

Seems like it's the dollar sign

ig cause in csh, that's used for variables

[lavish storm]

same in every other shell, except the -E allows it without the backslash

[umbral vault]

and if I take it out, it says that -E is an illegal option 😔

[lavish storm]

ah

then backslash all the metacharacters present in the regex

[umbral vault]

🙏

sunray% ls | grep "\^[a-Z0-9]\$"
Variable syntax

Dang...

Well, thank you... csh just strange
I'll call it a night 😅

[lavish storm]

or it just could be outdated, you could check the version with grep --version

good night!

[umbral vault]

Good night!

[formal schooner]

it might be quoting issues in csh, but it has nothing to do with grep

also keep in mind the usual admonitions against reading file lists with ls | grep

[wise forge]

@formal schooner I remember you adviced me to use apt install expect i think?

or well, someone from this chat at least

#unit-testing message

we have found pure python solution without third party packages ;b

[formal schooner]

i meant the python interface 🙂 https://pypi.org/project/pexpect/

[wise forge]

erm. well, still without third party packages solution ;b

[formal schooner]

but yes i see, if you just need to send something on stdin, input= is fine. expect/pexpect is good for when you need back-and-forth interaction, like testing a flow through some y/n confirmation prompts

[lavish storm]

indeed, csh seems to change the final " into a \" which is strange

no other shell does this

[spare junco]

@hearty field

[carmine aurora]

Hello, I'm looking for some pointers to writing a custom Gstreamer plugin, I currently have a program that I can print h264 encoded frames, I'm currently using fprint to write them to stdout and fdsrc to receive them in gst, but I feel like this is not performant and definitely not a clean solution, does anyone know where I can find some help with my project?

[formal schooner]

Are there other open source gstreamer plugins you can look at?

[carmine aurora]

There are, but since they're so complex I'm having issues wrapping my head around them

They're also very focused on the things they're trying to achieve so it's difficult to decouple the actual gst part from the plugins.

[carmine aurora]

New question, could someone help me migrate an old build script from a makefile to an existing meson.build?

I need to combine two projects together and I have little experience in meson and ninja

[obsidian yoke]

Hi

I am using cx_freeze to compile my python gui to exe. I have successfully done in windows 10, but when I tried to do that in ubuntu, I can't install cx-freeze. Please help

when I do pip install cx-freeze it gives me error

I am using Python 3.8 *, I want to update but reasons . . .

[dull vigil]

Hi there, I'm using ubuntu 18.04, how can I make virtualenv depend on Python 3.9, actually I installed Python 3.9 but the problem is ubuntu 18.04 uses Python 3.6 by default and if I change it to 3.9, the system will give me an error, so what I supposed to do?

[obsidian yoke]

oh then

you should install a python venv library by : sudo apt-get install python3-venv

then make your venv

by : virtualenv --python=python3.6 myvenv

[elder adder]

Hello everyone
I am converting deb to rpm and I want to know how well the conversion going to be.
I have in my deb package commands that I run after install and uninstall in postinst and postrm files and I want to know if theses commands will work when installing from rpm package and if will create desktop entry as well.

[obsidian yoke]

so you want to convert a deb file to rpm file ?

in ubuntu . . .

[elder adder]

yeah, in linux mint

[obsidian yoke]

k

just a quick small file use this (not recommended but want to get the work done) :

https://www.converter365.com/archive-converter/deb/deb-to-rpm

see this to do properly . . . :

https://www.tecmint.com/convert-from-rpm-to-deb-and-deb-to-rpm-package-using-alien/

[elder adder]

@obsidian yoke thank you for the links. I forgot to mention that I using alien to convert and I want to know if the resulting rpm package will work the same the deb package works

[dull vigil]

Thanks for helping

[obsidian yoke]

Your welcome

[autumn lynx]

how can I add a date/timestamp to my cronlog?

currently got it set to 2>&1;echo Logged time = $(date -Ins)) but it looks messy af

[formal schooner]

@obsidian yoke you probably don't need the standalone virtualenv program - you should just invoke -m venv with the python 3.9 executable. /path/to/python3.9 -m venv

[unborn rune]

what is the Python equivalent of bash's set +h?

[opaque ginkgo]

importlib.reload?

I'm not really sure what you're asking for @unborn rune

[haughty mortar]

Hi, Just a basic shell question .

I have a shell script that does aws sso login of multiple account and save that as a profile.. In shell script it does export AWS_PROFILE A1 or B1 etc.and but as it is in only in that shell. This script is saved in /usr/local/bin/awssso let's say .

if user execute- awssso

that AWS_PROFILE will not be set in the calling session .. as it was just temporary in awssso script .

how to make it available in calling session .. I know can be done using
. ./awssso or source awssso

but I want user just to run awssso command ..

is it to do in bash_proilfile .. if so how to overwrite the same env variable A1 first then B1 etc

[formal schooner]

@haughty mortar you can have the awssso command generate a shell script which the user evals. For example with Pyenv, you add this to your bashrc: eval "$(pyenv init -)"

[unborn rune]

I'm trying to extract an archive using

fileArchive = tarfile.open(fileItem, 'r:gz')
fileArchive.extractall(package_extraction_dir)
fileArchive.close()

and got this error: Permission denied: '/lfs/sources/extracted/bash-5.1.8/po/boldquot.sed'. I know it is an issue with permission but I can't figure out how to solve it. How can I solve this?

[unique condor]

Hello everyone,

I'm a python beginner and i'm actually working on python script on Linux that permit to obtain folders names and folders sizes in order to plot them into a pie i have already make a script that permit to do it with one level (ex : /home/user) but how can i make it recursively with class and inheritance in order to plot data for every level of my linux tree ? (ex: 1 plot for /home/user ; 1 plot for /home/user/test1 ; 1 plot for /home/user/test1/test1a ; ...)

there is the begin of the code that i am making :
https://paste.pythondiscord.com/tewuxezaci.rb

[shy yoke]

Hey @unique condor!

Uh-oh! It looks like your message got zapped by our spam filter. We currently don't allow .txt attachments, so here are some tips to help you travel safely:

• If you attempted to send a message longer than 2000 characters, try shortening your message to fit within the character limit or use a pasting service (see below)

• If you tried to show someone your code, you can use codeblocks
(run !code-blocks in #bot-commands for more information) or use a pasting service like:

https://paste.pythondiscord.com

[haughty mortar]

Thanks for replaying @formal schooner

e.g
let's say my awssso is
awssso
export AWS_PROFILE=A1

if I user run this locally awssso when you say generate a shell script when user execute this..

means adding eval in bashrc for awssso. .

what is the change in my awssso script

will try adding eval in bashrc and try

[nova viper]

what is unix

i have heard of linux

[steel grove]

Another og os

I only know a few things like it was made by at & t,
And Mac os runs off Unix I think

Not sure really pos or neg to each or the big differences

I'm just getting into comp science

[nova viper]

um

ok

well mac os is built on linux actually

[lavish storm]

no

it is not

macOS's kernel is built on BSD

which is not linux

[nova viper]

um

i was told that it was built on linux

terminal

commands

[lavish storm]

sharing UNIX commands in terminal doesn't mean macOS was built on linux

that is misinformation

[nova viper]

ok thanks

[lavish storm]

here's a diagram of macOS's architecture

a lot of linux distros are a combination of the linux kernel + GNU which stands for GNU is Not Unix

so that being said, UNIX isn't a single OS, rather it's a collection of OS's that follow its principles

namely BSD distros

linux is called unix-like because it does not fully adhere to the Unix principles

[steel grove]

Thanks for sharing!

[lavish storm]

no worries! happy to clarify these things

(same goes for PC vs Mac)

[haughty mortar]

@lavish storm Any thoughts on this also please

[lavish storm]

can't say I'm familiar with the process, sorry mate

[haughty mortar]

Nws thanks

[cerulean wolf]

can anyone help me understand why stuff like aria 2 can do realtime updates in the terminal without clearing the screen, but running basic python programs seem to not be able to?

[primal sierra]

They probably use a lot of fancy modern terminal control codes.

Rich is an excellent library to implement fancy output

[vague shell]

Hello guys I have this line of code in shell script (grep application/pdf /usr/share/applications/mimeinfo.cache ). I need to list all possible programs that can open PDF files. is there a way to do it in python without subprocess?

[spark mulch]

You mean if there's an equivalent of using grep? Sure, just open the file and look for lines containing application/pdf

[vague shell]

Thank you!! thanks to your suggestion I used configparser and as far as now it works, do you think there is a better way?

[spark mulch]

Configparser for what?

(I have no idea what mimeinfo.cache looks like; doesn't exist on my OS)

[vague shell]

[MIME Cache]
application/mxf=mpv.desktop;org.kde.haruna.desktop;
application/ogg=mpv.desktop;org.kde.haruna.desktop;
application/oxps=org.pwmt.zathura-pdf-mupdf.desktop;
application/pdf=firefox.desktop;gimp.desktop;org.pwmt.zathura-pdf-mupdf.desktop;

it looks like this so I am parsing and finding application/pdf and saving all after the "=", the problem is that now I need to save the values singularly, firefox.desktop gimp.desktop

[spark mulch]

Ah, okay. I guess you can use ConfigParser for that, yes. (I probably would have just iterated over the lines and split it myself)

So you have "firefox.desktop;gimp.desktop;org.pwmt.zathura-pdf-mupdf.desktop;" but want a list of strings?

[vague shell]

yeah separately

I could take a list, iterate on the string find the ; and do list.append?

[spark mulch]

Yes, but there's also a builtin: str.split

the_list = the_string.split(";")

(looks like you also want to .strip(";") first to avoid getting an empty string in your list at the end)

[vague shell]

and it'll save all 3 values or I need to iterate?

split

[spark mulch]

it'll save all values in a list

no matter how many

[vague shell]

thank you a lot

[stark parcel]

Might be in the wrong section, apologize if I am, just had a question about Docker. Do docker containers have their own linux file structure? Because when you are in the docker container shell, and you go back a few directories, you can see a linux file structure -- but is that the one for the main machine, or did the docker container create it?

[harsh owl]

@Riley - that is the container filesystem, not the actually root system

you could test it by doing like touch /foobar.txt in the root OS, then do an ls in the container

[stark parcel]

Gotcha, so each docker container would have it's own...?

[harsh owl]

yea

by default, anyhow. you can share them if you configure it that way

[stark parcel]

But it's not necessarily a VM...? Seems like a VM to me.

[harsh owl]

nah, it's a different technology. but similar in some ways.

you share a lot of elements of the host OS, whereas in a vm there is more isolation

also a lot more lightweight because of that

[stark parcel]

Alr, ill read up on the differences, thanks for ur help.

[lavish storm]

https://www.reddit.com/r/homelab/comments/q9izuq/i_still_dont_really_understand_the_point_of/

This may be of relevance to you

though more of a discussion on what containers do better than say bare metal VMs running *nix OSs

[stark parcel]

thanks

[rugged ledge]

where would you go to learn how to setup a network like this?

[lavish storm]

draw.io usually

it's what a lot of homelabbers use for network diagrams

oh you deleted it

[lavish storm]

check out r/homelab in reddit

there's also public discord server for it

which i am in

[rugged ledge]

thats where i found thi diagram im just new to computer sciencei dont know much about networking

what does it mean by homelab i thought a lab was like where a chemist does experiements?

[lavish storm]

Homelabbing is a practice of messing around with enterprise equipment and software at home. Primarily it's for experimentation before rolling stuff into a production environment, learning and/or practice etc

in practice it could be as simple as running an old computer as a home server to host services or do jobs

one of my clusters is loaded with GPUs which I can remote into and do most of my pytorch jobs, at the comfort of being snuggled in bed with an old Dell latitude

[worn tiger]

@rugged ledge What is the point of a Thin Client ?

like, what is it

oh

nvm

lab = where stuff is done

Programming, hosting of virtual machines, web hosting, home automation, game servers, you name it

[ember quiver]

Cheaper than a fat client if all you're doing is accessing a shared VM or server

[echo agate]

Not a vm. Beware lack of isolation. Also, it can bypass firewalls so make sure you know how to deal with the host ip tables

[stark parcel]

It can open ports on the main host if you tell it to though, right?

So in what situation would it “bypass” in a bad way

[echo agate]

if you used something like ubuntu fire wall and thought you were blocking traffic

im trying to think of when bypassing a firewall without you knowing would be a good thing

[echo agate]

dont get me wrong, its a good to learn, great for production

[static zinc]

Hi guys , I had a question regarding my VM workstation player, which is the right channel to ask so?

[wise forge]

#tools-and-devops sounds good enough to use. if you use VM in linux, asking the question is here would be all right too

[static zinc]

alright

I had an issue of getting my VM workstation player to resize to fullscreen, any workabouts?

[wise forge]

I am using virt-manager (GUI wrapper to QEMU) and having no problem to resize. Quite recommending this VM tool, it is quite powerful and comfortable

[static zinc]

do send link on how to install it

[wise forge]

what's your OS

[static zinc]

win 10

[wise forge]

I think I told you to use this channel only if u a using linux

windows 10 is not linux

virt-manager is only for linux

u could still have it in WSL though, but I am not sure how well virtualization will work from it

https://www.how2shout.com/linux/how-to-install-and-use-virt-manager-on-windows-10/

[static zinc]

so basically im using linux in vm on my win 10 os yea

[static zinc]

alright

[wise forge]

mm essentially u a using VM in windows. as a first layer, that's more important than what you are virtualizing there

the order and priority matter

[static zinc]

hmm yea

its annoying the fact my tool is working well

i cant resize the screen

[ember quiver]

Short of migrating to something else (virtual box, hyper-v, etc.) you might try installing x-rdp inside your Linux VM and then connecting from Windows that way (from the default RDP client built in to Windows)

[quaint sedge]

good evening, i am trying to right a python script in linux called target.py that has root owner and a setuid bit. Here is my code:

import os

myfile = open("/etc/shadow", "r")
original = myfile.read()
new = original
myfile.close()

while new == original:
os.system("./vulp < specialuser2")
myfile = open("/etc/shadow", "r")
new = myfile.read()
myfile.close()

print("The shadow file has been changed.")

I am trying to open the shadow file, change it, and close it. however, I am getting a permission error on the "myfile = open" line. any ideas how to get around this?

[formal schooner]

side note, you should use with for files, especially important files like this

!with

[shy yoke]

The with keyword triggers a context manager. Context managers automatically set up and take down data connections, or any other kind of object that implements the magic methods __enter__ and __exit__.

with open("test.txt", "r") as file:
    do_things(file)

The above code automatically closes file when the with block exits, so you never have to manually do a file.close(). Most connection types, including file readers and database connections, support this.

For more information, read the official docs, watch Corey Schafer's context manager video, or see PEP 343.

[sage pewter]

Hello! I'm trying to create a pip-installable package. I managed to add python scripts to PATH like this:

setup(
    ...
    entry_points={
        'console_scripts': [
            'myscript1=package.file1:main',
            'myscript2=package.file2:main',
        ]
    },
)

My code uses an external binary located at lib/mybinary. I would like to add it to PATH, too. Is that possible?

[formal schooner]

not with the entry points system as far as I know. do you want to distribute this via pypi? or some other way, like a traditional windows installer?

[sage pewter]

i suspected that was the case... thanks!

the goal was to install it like this pip install git+https://github.com/MrTomRod/gendiscalpy

it only has to work on unix systems.

instead, I just wrote a workaround installer script: https://github.com/MrTomRod/gendiscalpy#install_gendiscal

[dim elk]

Hi I wanted to delete the snapshots all here at once can someone please help me with the command?

[formal schooner]

maybe you can have a python script that execs the binary... kind of evil but also kind of not

[sage pewter]

I'll think about it, thanks!

[jolly kite]

There was this website that I once ran across and failed to bookmark that would let you enter bash scripts and it would break them down in plain english, anyone know what I'm talking about?

[formal schooner]

https://explainshell.com

[jolly kite]

That is exactly what I was looking for, thank you!

[wooden fjord]

whats the equivanent of task manager in ubuntu where i can see which processes use how many resources

my cpu is up to 85% with nothing running

found it nevermind

[ember quiver]

There is the GUI similar to Windows but command line top is worth getting to know

[primal sierra]

How is this relevant to Python or Unix?

[primal sierra]

it's just a link to a youtube video about printers ...

the print function doesn't interact with the household printer you might have, no?

!eval

print("is this a (paper) printer? I don't think so")

[shy yoke]

@primal sierra :white_check_mark: Your eval job has completed with return code 0.

is this a (paper) printer? I don't think so

[primal sierra]

No it is not, print functions push text to the console

!d print

[shy yoke]

print

print(*objects, sep=' ', end='\n', file=sys.stdout, flush=False)```
Print *objects* to the text stream *file*, separated by *sep* and followed by *end*. *sep*, *end*, *file*, and *flush*, if present, must be given as keyword arguments.

All non-keyword arguments are converted to strings like [`str()`](https://docs.python.org/3/library/stdtypes.html#str "str") does and written to the stream, separated by *sep* and followed by *end*. Both *sep* and *end* must be strings; they can also be `None`, which means to use the default values. If no *objects* are given, [`print()`](https://docs.python.org/3/library/functions.html#print "print") will just write *end*.

The *file* argument must be an object with a `write(string)` method; if it is not present or `None`, [`sys.stdout`](https://docs.python.org/3/library/sys.html#sys.stdout "sys.stdout") will be used. Since printed arguments are converted to text strings, [`print()`](https://docs.python.org/3/library/functions.html#print "print") cannot be used with binary mode file objects. For these, use `file.write(...)` instead.

Similar names: 2to3fixer.print

[primal sierra]

I don't know, maybe that's how your Python runner is setup but by default Python does not interact one bit with your household printer.

I'm still confused honestly, but I'm going to disengage as I don't have anything to contribute~

[stable hound]

@stiff current Please don't post random videos

@wide roost stop trolling

[stable hound]

If you have questions, please open a @tight thorn

[static zinc]

in lame man terms please 😩

[ember quiver]

See if this helps: https://itsfoss.com/xrdp-ubuntu/

[pliant gulch]

don't know of this is the right place to ask but is it possible to specify multiple directories with a shebang line?

[formal schooner]

directories?

[pliant gulch]

like /usr/bin/env python3 and /usr/bin/env <something else>

[formal schooner]

No, and what would you want to achieve by that?

[pliant gulch]

well i'm programming something that i need two libraries for, i cannot access the files on it directly, and the libraries aren't in path

[formal schooner]

The shebang does not add anything to your PATH variable

It tells the operating system what program should be used to run the current file

[pliant gulch]

oh

[formal schooner]

Write a shell script that sets PATH accordingly and then exec's python

[pliant gulch]

okay i guess that works

[formal schooner]

That said, what libraries?

Normally "libraries" aren't in PATH anyway

If this is within your own python project, there are better solutions

[pliant gulch]

well honestly

i have close to no idea what i'm doing

so

[violet junco]

anyone use arch? i need some help

[violet junco]

kernel says that wired gamepads should work out of the box but mine arent

they're detected just not working

[~]$ lsusb
Bus 001 Device 115: ID 20d6:2009 BDA Xbox Series X EnWired Controller Red inline

thats the gamepad being detected but it doesnt work with any software im trying to use it on

[shy yoke]

Rules

7. Keep discussions relevant to the channel topic. Each channel's description tells you the topic.

[formal schooner]

Well what are you doing?

[ember quiver]

Have you looked at this? https://www.reddit.com/r/linux_gaming/comments/l1ty23/getting_a_generic_xboxone_gamepad_to_work_on_linux/

[violet junco]

i found a github released driver that supports the newer versions of the xbox controllers so i managed to fix it but thank you

[topaz topaz]

I want to make a Deb bag.
Suppose the name of the Deb package I made is qiu_deb.
qiu_deb depends on other Deb packages (like libssl-dev...)
I think when users install qiu_deb, if "libssl dev" is not installed, install "libssl dev" first and then qiu_deb.

What should I do ?

[forest furnace]

take a look at how you can do package metadata https://debian-handbook.info/browse/stable/sect.package-meta-information.html -- you can specify your project dependencies in there. Or if you want a simple example: https://ubuntuforums.org/showthread.php?t=910717

[vestal seal]

Afternoon all,

I'm a hobbyist programmer who is using Pycharm on Ubuntu 20.04. I'm absolutely green when it comes to Linux.

I've been supplied with the following line of code from a Jupyter Notebook, and I am wondering how I can execute it in Pycharm?

My understanding of the line is that it is changing from the current directory to Tensorflow/models/research directory. Then the line will install protoc and tf2 at the new location.

cd Tensorflow/models/research && protoc object_detection/protos/*.proto --python_out=. && cp object_detection/packages/tf2/setup.py . && python -m pip install

[ember quiver]

Yeah, that looks right. If your question is how to run Jupyter notebooks in PyCharm it should be pretty straightforward but I've not done it. Maybe ask in #editors-ides

[vestal seal]

Thank you. I will ask there.

[orchid thorn]

I'm trying to get py2app and py2exe working, but even though py2app installs properly, it won't recognize py2applet as a command, and py2exe doesn't seem to install properly.
any advice?
I'm on macOS 10.14.6

never mind, I figured it out. I have to put 'python' before every command.

[amber anvil]

Can someone help me with unix problem pls

[forest furnace]

@amber anvil what's the problem?

[amber anvil]

and so for some nnumer of records

@forest furnace I need unix command to print Unnique IFSC code numers (first 8 digits of accounnt nnumber) in sorted order

my resultant should be unique 8character ones like SBIN0001 etc.,

[forest furnace]

you could use awk(1) to get the second column and then use something like regex to get the first 8 digits

[amber anvil]

how to get. unique ones

[forest furnace]

one solution is to pipe it into uniq after getting all the values

Does the left (first) column has anything to do with uniqueness by the way?

[amber anvil]

nooo

[forest furnace]

no what

isn't uniq posix?

[amber anvil]

we need to have only unique account numbers

[forest furnace]

@amber anvil if you still want help, please take a clearer screenshot than the one you had or paste the question text in it

[normal plaza]

If user01 wants to have access to a linux instance what are the steps to getting them onto the machine? Do i generate a new key pair as admin then give them the key pair? I'm assuming I'd have to bind those keys to that user

[forest furnace]

If you're talking about ssh: if the user has an account on the machine, they would have to generate a new key pair (this can be done elsewhere). the user then sends the public key of that key pair to the admin and that would be added to ~user01/.ssh/authorized_keys file. Then the user can login with their private key. If the admin is generating the keys, the admin has to send the private key to the user and similarly, add the public of that to the same authorized_keys file.

[modern kestrel]

is this right channell to ask a bash question?

[frigid solar]

because its a special place

It is basically a temporary directory, where apps put stuff which is required only for a certain amount of time

and then remove it once it isn't needed

[ember quiver]

Sure

[amber garnet]

chmod is 777 so everyone is able to read and modify inside this directory iirc

[main olive]

ah that makes sense thank you
drwxrwxrwt 21 root root 4096 Oct 27 11:31 tmp

[dull vigil]

Why I'm getting an error when trying to install any package using pip? I'm using Ubuntu 20.04 and Python 3.9

[main olive]

first link on google

https://stackoverflow.com/questions/59439725/cant-create-virtualenv-on-ubuntu-18-04-with-python-3-8

worth the try, just replace the python version number in the fix to 3.9 since thats what you use

[main olive]

planning to install Windows Server 2016 VM inside of my arch

does anyone run windows VM inside of their linux machines by any chance, wondering how much RAM will it eat up

even after all the debloating

[ember quiver]

Have had a horrible experience with windows swerver running on qemu, but it's hit or miss from what I've read, is not supposed to be that bad

Cpu cycles were the issue I ran into actually, not so much RAM. But two light instances of windows server doubled the power consumption of my host server

It wasn't slow, ran ok, just hogged CPU / power. It was weird

If I ever try it again, will try it with Proxmox

[main olive]

isnt it just qemu though

isnt qemu mostly for really really lightweight images

i know a lot of people in OS development use qemu when testing their own kernels

why did you go with qemu and not the usual suspects vmware or virtual box

[ember quiver]

Maybe, but it's supposed to be closer to bare metal then virtual box is... VMware is probably better but costs money

My linux VMs run pretty well

[amber anvil]

I need help with this unix problem,

How to find the total price of assets belonging to Finance department with some statement like
Total Asset price = <total price calculated>
My file is , separated like this one,
lap1,laptop,finance,50000
des1,desktop,Finance,4000
lap2,laptop,IT,80000
prn1,printer,Finance,10000
prn2,printer,HR,20000

and so on for some number of records
Just in case if the file hasn't got finance records we have
to print "No asset found"

My thought is to use awk to search for finance with case in-sensitive search on field 3 and
accumulate a variable using 4th column,How to implement it?
Also how do we handle else statements End section of awk.
How can I check for "No asset found" condition

[eager quail]

is this for a school project?

[amber anvil]

Noo not really, to get myself familiar with awk

[eager quail]

you can specify the delimiter for each column with the -F option i believe.

yup

cat <file> | awk -F ',' '{ print $4 }'

should print the fourth column in each line.

assuming the fourth column is the price.

[amber anvil]

yes yes so can i use .tolower($3) == 'finance' to search for finance records

[eager quail]

i suppose yeah.

[eager quail]

from here you can convert each new line from awk into a + with tr, then pipe it into bc.

[amber anvil]

yes thats right $4 is price, so something like count += $4

[eager quail]

i do not think that syntax works in Bash.

but the general idea, yeah.

[amber anvil]

I initialize count in Begin section and then for each record if match i do something like count = count + $4

[eager quail]

ah, you are using awk as the scripting language for this context.

[amber anvil]

How to check for else condition in end section if my count variable not incremented I need to print No asset found

[amber anvil]

yess just for scripting for now

[eager quail]

i have never used awk passed that honestly.

[north bronze]

Use other forma example sed o find

[eager quail]

hm?

what would sed do here?

[amber anvil]

like sed 's/finance' ?

[north bronze]

Sed is Best for search matches any time. ..but you have more options. ...sed awk egrep find. ..

Just you need search any example in any website. ..sorry guys my english is when say....basic haha xD

[amber anvil]

yes sed sometimes searches fastly with regex but sometimes we need some conditional statements so we're trying to approach awk

[north bronze]

Awk is very good for search matchs in columns

🙂

[amber anvil]

yes but as u said we're learning awk only after sed and grep..they do well with regular expressions

[formal schooner]

@amber anvil i recommend experimenting with writing awk "programs" and not focusing too much on writing "one-liners". you'll find that it's actually quite a nice little scripting language

and fairly fast too

[latent salmon]

I'm running the following command to copy a directory recursively to another location, but only the csv files

rsync -avzPu --include='*.csv' --include='*/' --exclude='*' source dest

what's strange is that the permissions of the files don't seem to match

neither the original permissions, nor the default permissions of a new file

okay, the answer is that the permissions are just funky while the copying is still happening, even for files that are individually complete... TIL 🙂

[warped nimbus]

Does that mean that if the process is killed, permissions for complete copies will be wrong?

[forest furnace]

possibly due to -P which is --partial and --progress:

--partial Keep partially transferred files
it probably does some clean up when getting stuff like sigint, but no idea what would happen if the process was forcibly killed

[prime magnet]

https://learning.lpi.org/en/learning-materials/101-500/

[latent salmon]

I don't think so. But yeah it is odd.

[dire holly]

Hi, I've been struggling a while with my rpi0, I'm trying to ssh to it through usb with my chromebook and im trying to ping my rpi but it doesnt respond. any help?

[lavish storm]

what would you like us to do with the information you've provided?

[wise forge]

🤔 best path/folder to keep temporal files from program results

/var/lib/app_name as a choice perhaps

[lavish storm]

/tmp ?

[wise forge]

it sounds good too

what would be difference between /tmp and /var/tmp though

/tmp is often cleaned up between reboots, and /var/tmp is preserved between boots apperently

in my case /tmp looks like enough

[dire holly]

Basically i want to ssh to my rpi through usb with chromebook

[forest furnace]

your rpi has to have the SSH server set up and your chromebook (either through linux beta or a client) have to have the keys set up

[fresh saddle]

/tmp is also usually faster because it is stored into memory and not on the disk

[wise forge]

👍

[hard smelt]

Hit:1 http://archive.raspberrypi.org/debian buster InRelease
Hit:2 http://apt.postgresql.org/pub/repos/apt buster-pgdg InRelease
Hit:3 http://raspbian.raspberrypi.org/raspbian buster InRelease
Reading package lists... Done
N: Skipping acquire of configured file 'main/binary-armhf/Packages' as repository 'http://apt.postgresql.org/pub/repos/apt buster-pgdg InRelease' doesn't support architecture 'armhf'

does anyone know how to fix this issue on linux?

I was following this https://www.postgresql.org/download/linux/ubuntu/

[wise forge]

architecture armhf is not available

apt supports only common architectures

in your case it is highly likely that you just need to install postgresql from source code / to build binaries on your own

https://www.postgresql.org/docs/14/installation.html

https://www.wikihow.com/Install-PostgreSQL-Using-the-Source-Code

use official docs for the last PSQL versions

if you want friendler docs, then feel free to use outdated tutorials, or perhaps you can find up to date tutorial not for an old postgresql version

[wise forge]

basically your OS is Other Linux ;b
https://www.postgresql.org/download/linux/#generic

[hard smelt]

Weird, idk I’m new to Linux

Ik I had it on my pi before but it may have been a different OS but Idk

How can I remove what I installed? Because I can’t update anything with it installed @wise forge

[wise forge]

if you can, just reinstall OS

it is easier to start from fresh system

than trying to fix already messed up things

but I am speaking from the point of view of web dev, that how we usually have it.

[hard smelt]

took a break to watch some movies xd

yeah honestly reinstalling will only take a few mins, might as well. I haven't done much on there anyways

[dire holly]

I think I have rpi ssh server set up, but anyways how do i do that on Chromebook? Is there any tutorial or something

[vestal flare]

Why I have to write something if just want to speak in vc

Do you guys use remote access desktop?

[warped nimbus]

Try putting "set -e" at the top of the hook script so the script stops when any command fails rather than continuing. "set -eo pipefail" would usually be even better but you're not using pipes currently so it won't matter

I don't think the nano issue is related to your hook. It's just the default editor git opens when a commit message isn't given with -m

You can change the editor in your git config. I don't remember the exact setting name but it's all documented and shouldn't be hard to find

[warped nimbus]

If you have questions about voice verification please ask them in #community-meta

[main olive]

the -e did it thank you, it also fixes the nano problem it just doesnt open if there's an error!

[warped nimbus]

If you're writing any shell script I suggest you default to starting with "set -euo pipefail". Makes the language's behaviour more sane.

Another good one is "shopt -s inherit_errexit"

Which makes command substitutions also get affected by set -e

I don't remember if that one is posix or a bash thing though

[olive ice]

How you fix nano is you delete it and install vim

[rugged ledge]

what makes apt-cache a cache if its on the hardrive and not memory or cpu cache? and whats the point of having this cache?

[lavish storm]

https://debian-handbook.info/browse/stable/sect.apt-cache.html

i found this to be quite resourceful in explaining it

[rugged ledge]

what does it mean by debian mirrors?

[lavish storm]

servers that contain packages, isos etc for Debian

[rugged ledge]

okay that explains cache quite well

thanks

[lavish storm]

no problem

[rugged ledge]

why ubuntu and other debian based distros so popular but i hardly hear of anyone using debian

[lavish storm]

i think debian is more popular in the server space than desktops

whereas ubuntu has its own desktop-oriented flavour separate to that for the server

[deep lava]

less software and packages. is great for server implementations.

[deep talon]

Debian is popular for the server because it is quite stable

Debian based distros such as Ubuntu are usually used with repos other than the official debian repo so they have access to more/current packages but are less stable

[cobalt path]

a big part of it is that debian's repos get new packages pretty slowly, which does mean stability but a lot of people don't want that for desktop use

also the release cycle for the distro itself is pretty slow, about every 2 years iirc

[ornate ibex]

who can help me for downlode linux with usb

install

#unix help me

[prime magnet]

it depends on the distribution you want to install

follow official guides, if you have any question feel free to ask

[ornate ibex]

where is distribution

[prime magnet]

not sure if I'm understanding your question. Here's Ubuntu's guide - https://help.ubuntu.com/community/Installation/FromUSBStick

[ornate ibex]

thanks but i can install only netinstall version of dbian

my problem is i install linux in usb and i boot usb in system now i click which to go to install menu

[prime magnet]

according - https://www.debian.org/releases/stable/amd64/ch05s01.en.html#usb-boot-x86

you should be presented with a graphical boot menu (on hardware that supports it). Here you can select various installer options, or just hit Enter.

[ornate ibex]

thanks man

[ornate ibex]

hey man you think linux is better or windows is better for programing

[lavish storm]

linux

[dusty spindle]

When I run ssh-keygen in Ubuntu, no known_hosts file is created along with my public and private keys... what's the deal?

[lavish storm]

did you eval?

iirc something along the lines of eval "$(ssh-agent -s)"

[prime magnet]

linux, definitely

it also might depend on the purpose. Developing Windows applications would be better on Windows

[wise forge]

Of course Linux.

Two exceptions..
If u a developing for MacOS and IOS, better to have macos

And if developing windows app, better having windows

[prime magnet]

also, experience + deadlines need to be taken in consideration

lol, same thinking

[wise forge]

Dev prod parity rule ;b (rule #10 from twelfth factor app)

Keep your Dev env as much close to prod env as possible

https://12factor.net/

[robust spindle]

what is the equivalent of a batch script in linux?

[main olive]

a Makefile? or just have some commands in a file.sh and call bash -x file.sh

[main olive]

I like Makefiles as you can just do make deploy etc

[ornate ibex]

guys i want install linux butt which app is bettr for install linux on usb

[main olive]

unetbootin

[ornate ibex]

hey how can i reset usb

[main olive]

just format it

[ornate ibex]

oo becuse i format it my usb Can't reset Space is occupied

[main olive]

you format as FAT32?

[ornate ibex]

yes

[main olive]

can you try formatting with a different software

did you try rufus?

[ornate ibex]

yes i try with rufus

now i try with unetbootin

[tidal wing]

Hi all,

May I know how can I achieve the following linux command in Python 3?

$ openssl enc -base64 -in encryptedpassword -out binarytext -d -A
$ openssl rsautl -decrypt -in binarytext -out plaintext -inkey private.pem

I'm trying the following

import base64
from Crypto.Cipher import PKCS1_OAEP
from Crypto.PublicKey import RSA
ciphertext = base64.b64decode("text")
rsa_key = RSA.importKey(open('private.pem', "rb").read())
cipher = PKCS1_OAEP.new(rsa_key)
cipher.decrypt(ciphertext)

Which results in ValueError: Incorrect decryption Error

[main olive]

couldn't you just call that exact command

from within python

like start another subprocess

[tidal wing]

I'm trying to implement this for doing at scale. I'm afraid it is going to be a mess if I do so. Correct me if I'm wrong

[wise forge]

direct equvalent: shell scripts http://www.macs.hw.ac.uk/~hwloidl/Courses/LinuxIntro/x864.html

example.sh

#!/bin/bash

# example of using arguments to a script
echo "My first name is $1"
echo "My surname is $2"
echo "Total number of arguments is $#" 

execute script with: ./example.sh (if it is not working, grant executing param to the file chmod 777 example.sh
possible to use functions, variable,, parameters from execution like ./example.sh mystuff anothersutff (script above uses those params as $1 and $2)
parallel execution and e.t.c. a lot of stuff.

makefile is a different story. it is using shell scripting language too, but their purpose is for easy menu-grouping subcommands.
like...
make onething # does one thing
make secondthing #does another thing
it has a bit of additions to regular syntax

[robust spindle]

Thanks for sharing

[cobalt path]

anyone here know of a way to get tableau working on linux? maybe Wine?

or is my best bet just gonna be using a vm

[ember quiver]

There's some ratings on wine HQ but most are "garbage" so give it a shot maybe but you're probably going to end up on a VM

[cobalt path]

😔

oh well

not too big of a deal

[hardy mesa]

Hello

[twin moat]

Hello

[main olive]

ask away fellas

[warm trout]

i have a disc withe 400 go what s the size of FAT if adrs blocs need 4 bit and the size of 1 bloc is 1 ko

thanks

[forest furnace]

I think it's because when using for line in sys.stdin the newlines are also included in line, and since print always appends a newline, there are double newlines in the result (one from the loop, one from print)

it's worth noting that even if you used sys.stdin.readlines(), the newlines (\n) would still be included. It's possible to workaround this by calling str.rstrip() on each loop to remove the newlines manually

[formal schooner]

it's pretty typical to write

for line in sys.stdin:
    line = line.strip()
    ...