我有一个命令,运行良好,如果我ssh到一台机器并运行它,但失败时,我试图运行它使用远程ssh命令,如:

ssh user@IP <command>

比较使用这两种方法的“env”的输出会得到不同的环境。当我手动登录到机器并运行env时,我得到了比运行时更多的环境变量:

ssh user@IP "env"

知道为什么吗?


当前回答

我也有类似的问题,但最后我发现~/。bashrc是我所需要的。

但是,在Ubuntu中,我必须注释停止处理~/的行。bashrc: (

#If not running interactively, don't do anything
[ -z "$PS1" ] && return

其他回答

在运行命令之前如何获取概要文件?

SSH user@host "source /etc/profile;/道路/ script.sh”

您可能会发现最好将其更改为~/。bash_profile、~ /。Bashrc之类的。

(如这里(linuxquestions.org))

有不同类型的外壳。SSH命令执行shell是非交互式shell,而普通的shell是登录shell或交互式shell。描述如下,来自man bash:

       A  login  shell  is  one whose first character of argument
       zero is a -, or one started with the --login option.

       An interactive shell is  one  started  without  non-option
       arguments  and  without the -c option whose standard input
       and error are both connected to terminals  (as  determined
       by  isatty(3)), or one started with the -i option.  PS1 is
       set and $- includes i if bash is interactive,  allowing  a
       shell script or a startup file to test this state.

       The  following  paragraphs  describe how bash executes its
       startup files.  If any of the files exist  but  cannot  be
       read,  bash reports an error.  Tildes are expanded in file
       names as described below  under  Tilde  Expansion  in  the
       EXPANSION section.

       When  bash is invoked as an interactive login shell, or as
       a non-interactive shell with the --login option, it  first
       reads and executes commands from the file /etc/profile, if
       that file exists.  After reading that file, it  looks  for
       ~/.bash_profile,  ~/.bash_login,  and  ~/.profile, in that
       order, and reads and executes commands from the first  one
       that  exists  and is readable.  The --noprofile option may
       be used when the shell is started to inhibit  this  behav­
       ior.

       When a login shell exits, bash reads and executes commands
       from the file ~/.bash_logout, if it exists.

       When an interactive shell that is not  a  login  shell  is
       started,  bash reads and executes commands from ~/.bashrc,
       if that file exists.  This may be inhibited by  using  the
       --norc  option.   The --rcfile file option will force bash
       to  read  and  execute  commands  from  file  instead   of
       ~/.bashrc.

       When  bash  is  started  non-interactively, to run a shell
       script, for example, it looks for the variable BASH_ENV in
       the  environment,  expands  its value if it appears there,
       and uses the expanded value as the name of a file to  read
       and  execute.   Bash  behaves  as if the following command
       were executed:
              if [ -n "$BASH_ENV" ]; then . "$BASH_ENV"; fi
       but the value of the PATH variable is not used  to  search
       for the file name.

执行remote ssh命令时Shell环境未加载。您可以编辑ssh环境文件:

vi ~/.ssh/environment

其格式为:

VAR1=VALUE1
VAR2=VALUE2

此外,检查sshd配置的PermitUserEnvironment=yes选项。

我也有类似的问题,但最后我发现~/。bashrc是我所需要的。

但是,在Ubuntu中,我必须注释停止处理~/的行。bashrc: (

#If not running interactively, don't do anything
[ -z "$PS1" ] && return

只需要导出在~/.bashrc中检查非交互式shell时需要的环境变量。