wall man page on OpenBSD

wall man page on OpenBSD

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WALL(1)			   OpenBSD Reference Manual		       WALL(1)

NAME
     wall - write a message to users

SYNOPSIS
     wall [-g group] [file]

DESCRIPTION
     wall displays the contents of file, or, by default, its standard input,
     on the terminals of all currently logged in users.

     Only the superuser can write on the terminals of users who have chosen to
     deny messages or are using a program which automatically denies messages.

     The options are as follows:

     -g group
	     Send messages to users in this group.  This option may be
	     specified multiple times, and any user in any of the specified
	     groups will receive the message.

SEE ALSO
     mesg(1), talk(1), write(1), shutdown(8)

HISTORY
     A wall command appeared in Version 7 AT&T UNIX.

OpenBSD 4.9			 May 31, 2007			   OpenBSD 4.9

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