Command for sending messages under CentOS6

Command for sending messages under CentOS6

1. wall '...'

Wall sends messages to all users. The message content is included in.

2. write userName tty

Use the who command to view online users and their tty, and then use the write command to send messages to them. Enter the command and enter the message mode. Enter the message content and press enter to send the message. Exit and press ctrl + D.

3. mesg

If you do not want to accept the message written by another user, disable it with mesg-n and enable it again as mesg-y.