RWALL(1-SysV)       RISC/os Reference Manual        RWALL(1-SysV)



NAME
     rwall - write to all users over a network

SYNOPSIS
     rwall host1 host2 ...
     rwall -n netgroup1 netgroup2 ...
     rwall -h host -n netgroup

DESCRIPTION
     rwall reads a message from standard input until end-of-file.
     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 daemon
     inetd(1M).

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

ERRORS
     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.

ORIGIN
     Sun Microsystems

























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