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 Installing SunOS 4.1 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. 

Sun Release 4.1  —  Last change: 17 December 1987