FreeBSD >Sending a Message to All Users on a System
You can use the wall command to send a message to every user on a system. General syntax of wall command is as follows:
wall
Message
Message
...
....
..
When the message is complete, press Control-D.
1) To display message "Disk failure system will be down for 30 minute" to all users use wall as follows:
# wall
Disk failure system will be down for 30 minute
--UNIX Admin
--MyCorp.com
When the message is complete, press Control-D (CTRL+D) to send message to all user.
2) To display message "Web server under DOS attack, come to IDC # 3" to all WHEEL group member use wall command with –g option as follows:
# wall –g wheel
Web server under DOS attack, come to IDC # 3 to investigate matter further.
-- IT HEAD
When the message is complete, press Control-D (CTRL+D) to send message to all user.
You may also be interested in other helpful articles:
- FreeBSD > Sending a Message to an Individual User
- FreeBSD > Sending a Message by E-Mail
- FreeBSD / Linux: Sending a Message to Windows Workstation with smbclient command
- FreeBSD >Sending a Message to All Users on a Remote UNIX/Linux/FreeBSD System
- Shell scripting: Write message to a syslog / log file
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