wall
补充说明
语法
wall(参数)参数
实例
[root@localhost ~]# wall this is a test line
Broadcast message from root (pts/1) (Fri Dec 20 11:36:51 2013):
this is a test lineLast updated
wall(参数)[root@localhost ~]# wall this is a test line
Broadcast message from root (pts/1) (Fri Dec 20 11:36:51 2013):
this is a test lineLast updated