NAME

rwall − write to all users over a network

SYNOPSIS

/usr/etc/rwall hostname ...
/usr/etc/rwall −n netgroup ...
/usr/etc/rwall −h host −n netgroup

DESCRIPTION

The rwall command reads a message from standard input until EOF.  It then sends this message, preceded by the line "Broadcast Message ...," to all users logged in to the specified host machines.  With the -n option, rwall sends the message to the specified network groups defined in netgroup(4).

A machine can only receive such a message if it is running rwalld(1M), which is normally started from /etc/inetd.conf by the daemon inetd(1M).

WARNINGS

The timeout is fairly short so the message can be sent 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. 

AUTHOR

Sun Microsystems, Inc. 

FILES

/etc/inetd.conf

SEE ALSO

rwalld(1M), shutdown(1M), wall(1M), netgroup(4). 

INTERNATIONAL SUPPORT

8-bit data, 16-bit data, messages

Hewlett-Packard Company  —  May 11, 2021