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wall(1) [ultrix man page]

wall(1) 						      General Commands Manual							   wall(1)

       wall - write to all users


       The  command  reads  its  standard  input  until an EOF.  It then sends this message, preceded by `Broadcast Message ...', to all logged in

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

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


See Also
       mesg(1), write(1)


Check Out this Related Man Page

WALL(1) 							Linux User's Manual							   WALL(1)

wall -- send a message to everybody's terminal. SYNOPSIS
wall [ message ] DESCRIPTION
Wall sends a message to everybody logged in with their mesg(1) permission set to yes. The message can be given as an argument to wall, or it can be sent to wall's standard input. When using the standard input from a terminal, the message should be terminated with the EOF key (usually Control-D). The length of the message is limited to 20 lines. NOTES
There is an undocumented (well not anymore..) option, "-n", that supresses the banner printed by wall . This is for usage by rwalld (8). Wall will not allow you to use that flag if wall is installed set-group-id and the user executing wall is not root. For every invocation of wall a notification will be written to syslog, with facility LOG_USER and level LOG_INFO. ENVIRONMENT
Wall ignores the TZ variable - the time printed in the banner is based on the systems local time. SEE ALSO
mesg(1), rpc.rwalld(8). AUTHOR
Miquel van Smoorenburg, 12 September 2000 WALL(1)
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