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 wall(1M)							    wall(1M)




 NAME
      wall - write message to all users

 SYNOPSIS
      /usr/sbin/wall [-ggroupname] [file]

      /usr/sbin/cwall [-ggroupname] [file]

 DESCRIPTION
      Without arguments, the wall command reads a message from standard
      input until end-of-file.	Then it sends this message to all currently
      logged-in users preceded by:

	   Broadcast Message from ...

      If the -ggroupname option is specified, wall sends the message to all
      currently logged-in groupname members (as specified in /etc/group)
      preceded by:

	   Broadcast Message from ... to group groupname

      If file is specified, wall reads file instead of standard input.

      wall is typically used to warn all users prior to shutting down the
      system.

      The sender must have appropriate privileges to override any
      protections the users may have invoked (see mesg(1)).

      wall has timing delays, and takes at least 30 seconds to complete.

      You must have appropriate privileges to override any protections users
      may have invoked (see mesg(1)).

 EXTERNAL INFLUENCES
    International Code Set Support
      Single- and multibyte character code sets are supported.

 DIAGNOSTICS
      Cannot send to ...
	   The open on a user's tty file failed.

 WARNINGS
      The wall command will be WITHDRAWN from X/Open standard and may not be
      portable to other vendor's platforms.

 AUTHOR
      wall was developed by AT&T and HP.

 FILES
      /dev/tty*



 Hewlett-Packard Company	    - 1 -   HP-UX Release 11i: November 2000






 wall(1M)							    wall(1M)




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

 STANDARDS CONFORMANCE
      wall: SVID2, SVID3, XPG2, XPG3

















































 Hewlett-Packard Company	    - 2 -   HP-UX Release 11i: November 2000