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OpenSolaris 2009.06 - man page for rwall (opensolaris section 1m)

rwall(1M)						  System Administration Commands						 rwall(1M)

NAME
rwall - write to all users over a network
SYNOPSIS
/usr/sbin/rwall hostname... /usr/sbin/rwall -n netgroup... /usr/sbin/rwall -h hostname -n netgroup
DESCRIPTION
rwall reads a message from standard input until EOF. It then sends this message, preceded by the line: Broadcast Message ... to all users logged in on the specified host machines. With the -n option, it sends to the specified network groups.
OPTIONS
-n netgroup Send the broadcast message to the specified network groups. -h hostname Specify the hostname, the name of the host machine.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWrcmdc | +-----------------------------+-----------------------------+
SEE ALSO
inetd(1M), listen(1M), pmadm(1M), sacadm(1M), wall(1M), attributes(5)
NOTES
The timeout is fairly short to allow transmission to a large group of machines (some of which may be down) in a reasonable amount of time. Thus the message may not get through to a heavily loaded machine. SunOS 5.11 6 Nov 2000 rwall(1M)