Shell：以不同用户身份执行脚本命令

Question

I have the following script:

Command1 
Command2
Command3

I would like to execute the command1 and command2 as user user1 , and execute the command3 as user2 .

That's why this command uses a file that is on the home directory, and each user has it's own. Command 3 requires the User2 file, that's why I need to execute it as user2.

How can I do that?

Answer 1

Well sudo is what you need. If you can install it and have the right to set it up, you'll be able to execute your command with the users you configured.

Your /etc/sudoers.conf file will look like somethig like this:

user1 ALL = NOPASSWD: /full/path/to/Command1
user1 ALL = NOPASSWD: /full/path/to/Command2
user2 ALL = NOPASSWD: /full/path/to/Command3

your script could then be written as:

sudo -u user1 Command1
sudo -u user1 Command2
sudo -u user2 Command3

Here is a short introduction to sudo