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) permis-
sion 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 AT cistron.nl
15 April 2003 WALL(1)