Linux中 groupmems命：更改和查看组成员

语法

groupmems [选项] [动作]

选项

-g,--group groupname 更改为指定组 (只有root)
 -R,--root CHROOT_DIR         directory to chroot into （暂未涉及）

动作

-a,--add username 指定用户加入组
 -d,--delete username 从组中删除用户
 -p,--purge 从组中清除所有成员
 -l,--list 显示组成员列表
-h,--help   查看帮助

实例

1. 添加用户a到组A

   [09:27:02 [email?protected] data]#id a
   uid=1001(a) gid=1001(a) groups=1001(a)
   [09:27:12 [email?protected] data]#groupmems -a a -g A
   [09:27:56 [email?protected] data]#id a
   uid=1001(a) gid=1001(a) groups=1001(a),1005(A)

   

2. 把用户a从A组删除

   [09:29:10 [email?protected] data]#id a
   uid=1001(a) gid=1001(a) groups=1001(a),1005(A)
   [09:33:45 [email?protected] data]#groupmems -d a -g A
   [09:34:01 [email?protected] data]#id a
   uid=1001(a) gid=1001(a) groups=1001(a)

   

3. 显示组A有哪些用户

   [09:34:09 [email?protected] data]#groupmems -g A -l  (当前A组无用户)
   [09:38:25 [email?protected] data]#groupmems -a a -g A
   [09:38:39 [email?protected] data]#groupmems -a a1 -g A
   [09:38:42 [email?protected] data]#groupmems -g A -l
   a  a1

   

   
   4.删除A组中所有用户

   [09:41:33 [email?protected] data]#groupmems -g A -l
   a  a1 
   [09:41:41 [email?protected] data]#groupmems -g A -p
   [09:41:50 [email?protected] data]#groupmems -g A -l
   [09:41:52 [email?protected] data]#