Linux wall command

Linux Command Reference

The Linux wall command sends a message to every online user whose mesg is set to yes. When using the terminal interface as standard input, the message must end with EOF (usually Ctrl+D).

Permissions: all users.

Syntax

wall [ message ]

Examples

Send the message "hi" to every user

wall hi

Broadcast message

# wall Ilove

Broadcast message from root (pts/4) (Thu May 27 16:41:09 2014):

Ilove

Linux Command Reference