# 2.11BSD#431 - /usr/man/cat1/wall.0

    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

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