1.查看当前登陆的用户
$ who
$ finger
2.查看用户的信息
$ finger lhj
3.查看用户所属组别
$ groups loongson
loongson : loongson adm dialout cdrom plugdev lpadmin admin sambashare libvirtd
4.添加用户到指定组:
# usermod -a -G testgroup loongson
转载于:https://www.cnblogs.com/xiyoulhj/p/3644260.html