WALL(1) UNIX Programmer's Manual WALL(1) NAME wall - write to all users SYNOPSIS wall DESCRIPTION Wall reads its standard input until an end-of-file. It then sends this message, preceded by `Broadcast Message ...', to all logged in users. The sender should be super-user to override any protections the users may have invoked. FILES /dev/tty? /var/run/utmp SEE ALSO mesg(1), write(1) DIAGNOSTICS `Cannot send to ...' when the open on a user's tty file fails. Printed 11/26/99 November 27, 1996 1