RWALL(1C)

NAME
rwall - write to all users over a network

SYNOPSIS
/usr/etc/rwall hostname...
/usr/etc/rwall -n netgroup...
/usr/etc/rwall -h hostname -n netgroup

AVAILABILITY

This command is available with the Networking software installation option. Refer to for information on how to install optional software.

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, which are defined in netgroup(5).

A machine can only receive such a message if it is running rwalld(8C), which is normally started up from /etc/inetd.conf by the daemon inetd(8C).

FILES
/etc/inetd.conf

SEE ALSO
wall(1), netgroup(5), inetd(8C), rwalld(8C), shutdown(8)

BUGS

The timeout is fairly short in order to be able to send 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.