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port5432
Asked: 2023-03-18 05:28:45 +0800 CST

为什么 ssh 不能在 shell 中运行 rbenv？

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我正在尝试在远程服务器上运行 bash 脚本以通过 rbenv 安装 ruby​​。

#!/bin/bash
# ssh [email protected] 'bash -s' < configure.sh

echo "ruby 3.2.1"
rbenv install 3.2.1 --verbose
rbenv global 3.2.1

在远程服务器上rbenv已经为用户安装了deploy。如果我登录到该服务器，它运行正常。

❯ ssh [email protected]

deploy@ubuntu-focal:~$ rbenv
rbenv 1.2.0-59-g0704e65
Usage: rbenv <command> [<args>...]

但是如果我们尝试通过 ssh 运行命令，它就找不到了。

❯ ssh [email protected] "rbenv"
bash: rbenv: command not found

脚本也有同样的问题。

❯ ssh [email protected] 'bash -s' < configure.sh
ruby 3.2.1
bash: line 5: rbenv: command not found
bash: line 6: rbenv: command not found
bash: line 7: ruby: command not found
bash: line 9: gem: command not found
bash: line 10: gem: command not found
ssh

1 个回答

  1. Best Answer

    简而言之，$PATH就是没有设置。

    Bash，当以交互模式或登录 shell 启动时，会读取一些配置文件，例如.profile和.bashrc：

    --noprofile
  Do not read either the system-wide startup file /etc/profile  or
  any   of  the  personal  initialization  files  ~/.bash_profile,
  ~/.bash_login, or ~/.profile.   By  default,  bash  reads  these
  files  when  it  is invoked as a login shell (see INVOCATION be-
  low).

--norc Do  not  read  and  execute  the  personal  initialization  file
       ~/.bashrc if the shell is interactive.  This option is on by de-
       fault if the shell is invoked as sh.

    从man bash. 您启动一个非登录、非交互式 shell。

    或者，您的脚本应该：

    1. source ~/.bashrc
    2. $PATH自己指定
    3. 使用绝对路径
    • 2

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