名称

       sg - 以不同的组 ID 执行命令

大纲

       sg [-] [group [-c ] command]

描述

       The sg command works similar to newgrp but accepts a command. The command will be executed
       with the /bin/sh shell. With most shells you may run sg from, you need to enclose
       multi-word commands in quotes. Another difference between newgrp and sg is that some
       shells treat newgrp specially, replacing themselves with a new instance of a shell that
       newgrp creates. This doesn't happen with sg, so upon exit from a sg command you are
       returned to your previous group ID.

配置文件

       The following configuration variables in /etc/login.defs change the behavior of this tool:

文件

       /etc/passwd
           用户账户信息。

       /etc/shadow
           安全用户账户信息。

       /etc/group
           组账户信息。

       /etc/gshadow
           安全组账户信息。

参见

       id(1), login(1), newgrp(1), su(1), gpasswd(1), group(5), gshadow(5).