Linux常用命令-wall

命令

wall

描述

send a message to everybody’s terminal
发送消息到所有登录终端

用法

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wall [-n] [ message ]

选项

注意

所有登录终端均可以看到该消息,可用于发送警告信息

示例

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# 默认会显示消息的发送者
$ wall 'The system will shutdown!'
Broadcast message from root@node1 (pts/0) (Sat Mar 20 20:51:00 2021):

The system will shutdown!
# -n不显示消息的发送者
$ wall -n 'The system will shutdown!'
Remote broadcast message (Sat Mar 20 20:51:34 2021):

The system will shutdown!
# 另一用户发送消息
$ wall 'Please wait 5 minutes!'
Broadcast message from usera@node1 (pts/1) (Sat Mar 20 20:54:54 2021):

Please wait 5 minutes!
# 回复其消息
$ wall 'ok'
Broadcast message from root@node1 (pts/0) (Sat Mar 20 20:55:22 2021):

ok