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WALL(1)                     General Commands Manual                    WALL(1)



NAME
       wall - write to all users logged in

SYNOPSIS
       wall [ -a ] [ filename ]

DESCRIPTION
       wall  reads  the  standard input until an EOF.  It then sends this mes-
       sage, preceded by `Broadcast Message ...', to all logged in users.   If
       filename  is  given,  then the message is read in from that file.  Nor-
       mally, pseudo-terminals that do not correspond to rlogin  sessions  are
       ignored.  Thus when in sunview(1), the message appears only on the con-
       sole window.  However, -a will send the message even  to  such  pseudo-
       terminals.

       The  sender  should be super-user to override any protections the users
       may have invoked.

FILES
       /dev/tty?
       /etc/utmp

SEE ALSO
       mesg(1), sunview(1), write(1)



                               9 September 1987                        WALL(1)