WALL(1-BSD)         RISC/os Reference Manual          WALL(1-BSD)



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?
     /etc/utmp

SEE ALSO
     mesg(1), write(1)

DIAGNOSTICS
     `Cannot send to ...' when the open on a user's tty file
     fails.































                        Printed 11/19/92                   Page 1