#Warp cannot view the output of the commands its running

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paper bramble
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I have warpified my ssh connection I made on my windows machine, for some reason when using the agent mode warp doesn't see the output it's getting from the commands being ran. It gets fixed for 1-2 commands sometimes but most of the times skips.

Commands are running seperately I think.

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ember sedgeBOT
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Hi @paper bramble. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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Based on the knowledge sources, there are several known issues with Warp's SSH wrapper and Agent Mode that can cause the behavior you're describing—where Warp (especially in agent mode) does not see or display the output of commands run over an SSH connection.

Key points from the sources:

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  • The SSH wrapper only supports bash or zsh shells on the remote machine. For Windows, Cygwin is required to bootstrap the SSH wrapper. If you're not using these, or if the remote shell is not set up as expected, output issues can occur. Also, certain shell customizations or plugins (like bash-it) can interfere with Warp's prompt and output handling, causing command output to be hidden or not recognized by the agent [SSH Legacy - docs.warp.dev].
  • There are reports that, even when using supported shells, the agent sometimes fails to capture command output, especially over SSH. This can manifest as the agent repeatedly claiming there is "no output" from commands that do produce output. This issue has been observed on both Linux and Windows remote hosts, and sometimes updating Warp resolves it [No command output on ubuntu 16.0.4 over ssh].
  • For Windows SSH targets, the SSH wrapper requires Cygwin. If Cygwin is not installed or not properly configured, the connection may fail or output may not be handled correctly. As a workaround, you can disable the SSH wrapper in Warp's settings or use command ssh to bypass the wrapper, which may restore normal SSH behavior (though you will lose some Warp features like blocks) [Warp SSH Wrapper makes connection to Windows disconnect immediately].
  • There are also known issues with agent mode and pagers (like less), where the agent only "sees" the visible output and may not handle paged output correctly, leading to incomplete or missing responses [Agent flow is disrupted when command results in output shown in less].

Troubleshooting steps:

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  1. Check your remote shell: Ensure the remote machine is using bash or zsh and, for Windows, that Cygwin is installed and properly configured.
  2. Try bypassing the SSH wrapper: In Warp, add command ssh to your Settings > Subshells > Added commands, then connect using command ssh <user@server>. This disables the wrapper and may resolve output issues, though you will lose some advanced Warp features [SSH Legacy - docs.warp.dev].
  3. Disable custom shell plugins: If you use plugins like bash-it, try disabling them for Warp sessions, as they can interfere with prompt and output handling [Command Output Hidden].
  4. Update Warp: Some output issues have been resolved in recent updates, so ensure you are running the latest version [No command output on ubuntu 16.0.4 over ssh].

If these steps do not resolve the issue, it may be a limitation or bug in the current SSH wrapper or agent mode implementation. The Warp team is aware of these types of issues and is working on improvements.

Summary:
Warp's SSH wrapper and agent mode can sometimes fail to capture or display command output, especially with certain remote shell setups, plugins, or on Windows without Cygwin. Try bypassing the SSH wrapper or disabling custom shell plugins as a workaround. If the problem persists, it may be a known limitation that is being addressed in future updates.

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@paper bramble Kapa.ai is still learning and improving, please let me know how I did by reacting below.

paper bramble
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@ember sedge is it possible that i install warp at my ubuntu server and use it as terminal from my ssh

ember sedgeBOT
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Let me check the knowledge base for you again. One moment! :books:

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No, you cannot use Warp as a remote terminal server that you connect to via SSH from another terminal. Warp is a terminal emulator designed to be installed and run on your local machine (macOS, Linux, or Windows). It is not a terminal server or a shell that you can SSH into and use as a terminal interface from another client.

You can, however, install Warp on your Ubuntu server and use it locally on that server (if it has a graphical environment). But you cannot SSH into a server and have Warp provide the terminal interface over that SSH connection. Instead, Warp is meant to be installed on your client machine, and you use it to SSH into other servers from there.

If you want to use Warp's features while connected to a remote server, you should install Warp on your local machine and use its SSH integration to connect to your Ubuntu server. This way, you get the benefits of Warp's modern terminal features while working on remote systems [Warp for Linux].

The knowledge sources do not mention any support for running Warp as a remote-access terminal server or using it as a shell over SSH.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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@paper bramble Kapa.ai is still learning and improving, please let me know how I did by reacting below.

paper bramble
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@ember sedge how would i use ssh integration

ember sedgeBOT
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Let me check the knowledge base for you again. One moment! :books:

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To use SSH integration in Warp, you simply use the SSH command from within the Warp terminal on your local machine. Warp provides an SSH wrapper that enables its advanced features (like blocks, input editor, completions, and history search) in your remote SSH sessions.

How to use SSH integration in Warp:

  1. Open Warp on your local machine.

  2. Run your SSH command as usual:

    ssh user@remote-server

    Warp will detect the SSH session and prompt you to "Warpify" the session, enabling its features on the remote machine.

  3. Requirements:

    • The remote machine should use bash or zsh as the default shell.
    • For Windows servers, Cygwin is required.
    • For the new SSH integration, tmux is required on the remote machine. If not present, Warp will offer to install it for you with your permission [SSH Integration Docs].

  4. If you don't want to Warpify a session:
    You can cancel the Warpification prompt and continue using SSH without Warp's extra features.

  5. Troubleshooting:
    If you encounter issues (e.g., with unsupported shells or older systems), you can bypass the SSH wrapper by adding command ssh to your Warp settings under Settings > Subshells > Added commands, and then connect using:

    command ssh user@remote-server

    This will use Warp's subshell logic instead of the SSH wrapper, which may help in some cases [SSH Legacy Docs].

Note:
Warp's SSH integration is designed to work from your local Warp terminal, not by installing Warp on the remote server and connecting to it.

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For more details and troubleshooting, see the official documentation: Warp SSH Integration.

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