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wall(1) [bsd man page]

WALL(1) 						      General Commands 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. 4th Berkeley Distribution November 27, 1996 WALL(1)

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

NAME
wall -- send a message to everybody's terminal. SYNOPSIS
wall [-n] [ 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. For every invocation of wall a notification will be written to syslog, with facility LOG_USER and level LOG_INFO. OPTIONS
-n Suppresses the normal banner printed by wall, changing it to "Remote broadcast message". This option is only available for root if wall is installed set-group-id, and is used by rpc.walld(8). ENVIRONMENT
Wall ignores the TZ variable - the time printed in the banner is based on the system's local time. SEE ALSO
mesg(1), rpc.rwalld(8). AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl 15 April 2003 WALL(1)

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