WALL(1M)                 DOMAIN/IX SYS5                  WALL(1M)



NAME
     wall - write to all users on a node

USAGE
     /etc/wall

DESCRIPTION
     The wall command reads its standard input until an end-of-
     file and then sends the specified message to all users
     currently logged in on a particular node. The message is
     always preceded by:

         Broadcast Message from ...


     The wall command is helpful in notifying users of important
     information, and particularly for warning them prior to a
     system shutdown.

     The sender must be super-user.

FILES
     /dev/pty*      device filenames

     /dev/sio*      device filenames

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

RELATED INFORMATION
     write(1)





















Printed 12/4/86                                            WALL-1