Manual pages › System administration commands (1M)
rwall(1M)
write to all users over a network
From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.
Also by this name: rwall(3N), Network library
NAME
rwall - write to all users over a network
SYNOPSIS
/usr/sbin/rwall hostname ...
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. A machine can only receive such a message if it is running rwalld(1M), which may be started by inetd(1M) or listen(1M).
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.
SEE ALSO
inetd(1M), listen(1M), pmadm(1M), rwalld(1M), sacadm(1M), wall(1)