我如何使用su执行bash脚本作为用户的休息吗？ [英] How do I use su to execute the rest of the bash script as that user?

问题描述

我写了一个脚本，它作为一个参数，一个字符串，它是一个用户名和项目的串联。该脚本应该（SU）切换到用户名，cd到基于项目的字符串一个特定的目录。

I've written a script that takes, as an argument, a string that is a concatenation of a username and a project. The script is supposed to switch (su) to the username, cd to a specific directory based upon the project string.

基本上，我想做的事：

su $USERNAME;  
cd /home/$USERNAME/$PROJECT;  
svn update;  

问题是，一旦我做一个苏...它只是等待在那里。这是有道理的，因为执行流程已传递到切换到用户。有一次，我退出，那么剩下的事情执行，但根据需要它不工作。

The problem is that once I do an su... it just waits there. Which makes sense since the flow of execution has passed to switching to the user. Once I exit, then the rest of the things execute but it doesn't work as desired.

我prepended苏的svn命令，但命令失败（即它没有所需的目录更新SVN）。

I prepended su to the svn command but the command failed (i.e. it didn't update svn in the directory desired).

我如何编写一个脚本，允许用户切换用户，并调用SVN（除其他事项外）？

How do I write a script that allows the user to switch user and invoke svn (among other things)?

推荐答案

的技巧是使用命令命令，苏

The trick is to use "sudo" command instead of "su"

您可能需要添加此

username1 ALL=(username2) NOPASSWD: /path/to/svn

你的/ etc / sudoers文件

to your /etc/sudoers file

和改变你的脚本：

sudo -u username2 -H sh -c "cd /home/$USERNAME/$PROJECT; svn update" 

在哪里USERNAME2就是你要运行的SVN命令和USERNAME1在用户运行脚本的用户。

Where username2 is the user you want to run the SVN command as and username1 is the user running the script.

如果您需要多个用户运行此脚本，使用％组名而不是USERNAME1

If you need multiple users to run this script, use a %groupname instead of the username1

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