rwall(1C)                         ONC R4.11                        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

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(4).

       A machine can only receive such a message if it is running
       rwalld(1M), which is normally started up by the server inetd(1M).

SEE ALSO
       wall(1M), inetd(1M), rwalld(1M), shutdown(1M), netgroup(4).

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.


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