WALL(1) Linux User's Manual WALL(1)NAMEwall-- send a message to everybody's terminal.
SYNOPSISwall [-n] [ message ]
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
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
Wall ignores the TZ variable - the time printed in the banner is based
on the system's local time.
SEE ALSOmesg(1), rpc.rwalld(8).
Miquel van Smoorenburg, email@example.com
15 April 2003 WALL(1)