sg

名称

sg - 以不同的组 ID 执行命令

大纲

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 /etc/shadow /etc/group /etc/gshadow

参见

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