49 lines
1.2 KiB
Groff
49 lines
1.2 KiB
Groff
.TH RWALL 1 "1 February 1985"
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.\" @(#)rwall.1 1.1 92/07/30 SMI;
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.SH NAME
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rwall \- write to all users over a network
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.SH SYNOPSIS
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.B rwall
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host1 host2 ...
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.br
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.B rwall
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.B \-n
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netgroup1 netgroup2 ...
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.br
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.B rwall
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.B \-h
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host
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.B \-n
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netgroup
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.SH DESCRIPTION
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.IX "write to all users on network" "" "write to all users on network \(em \fLrwall\fP"
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.IX network rwall "" "\fLrwall\fP \(em write to all users"
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.IX "broadcast messages" "rwall" "" "\fLrwall\fP \(em to all users on network"
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.I Rwall
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reads a message from standard input until end-of-file.
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It then sends this message,
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preceded by the line ``Broadcast Message ...'',
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to all users logged in on the specified host machines.
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With the
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.B -n
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option,
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it sends to the specified network groups,
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which are defined in
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.IR netgroup (5).
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.PP
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A machine can only receive such a message if it is running
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.IR rwalld (8),
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which is normally started up from
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.I /etc/servers
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by the daemon
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.IR inetd (8).
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.SH FILES
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/etc/servers
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.SH "SEE ALSO"
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wall(1), netgroup(5), rwalld(8), shutdown(8)
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.SH BUGS
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The timeout is fairly short in order to be able to send to
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a large group of machines (some of which may be down)
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in a reasonable amount of time.
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Thus the message may not get thru to a heavily loaded machine.
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