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?
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
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))
其他回答
只需要导出在~/.bashrc中检查非交互式shell时需要的环境变量。
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 . "$BASH_ENV"; fi but the value of the PATH variable is not used to search for the file name.
在运行命令之前如何获取概要文件?
SSH user@host "source /etc/profile;/道路/ script.sh”
您可能会发现最好将其更改为~/。bash_profile、~ /。Bashrc之类的。
(如这里(linuxquestions.org))
我发现一个简单的解决方法是添加 源/ etc / profile 到我试图在目标系统上运行的script.sh文件的顶部。 在这里的系统上,这会导致script.sh所需的环境变量被配置,就像从登录shell中运行一样。
在先前的一个响应中,建议~/。bashr_profile等等……被使用。 我没有花太多时间在这个问题上,但是,如果您ssh到目标系统上的不同用户,而不是您登录的源系统上的shell,在我看来,这将导致源系统用户名用于~。
我也有类似的问题,但最后我发现~/。bashrc是我所需要的。
但是,在Ubuntu中,我必须注释停止处理~/的行。bashrc: (
#If not running interactively, don't do anything
[ -z "$PS1" ] && return