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1'\" -*- coding: UTF-8 -*-
2.\" Copyright (C) 1998-2003 Miquel van Smoorenburg.
3.\"
4.\" This program is free software; you can redistribute it and/or modify
5.\" it under the terms of the GNU General Public License as published by
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9.\" This program is distributed in the hope that it will be useful,
10.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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17.\"
18.TH WALL 1 "15 April 2003" "" "Linux User's Manual"
19
20.SH NAME
21wall -- send a message to everybody's terminal.
22
23.SH SYNOPSIS
24.B wall
25.RB [ \-n ]
26.RB [ " message " ]
27
28.SH DESCRIPTION
29.B Wall
30sends a message to everybody logged in with their
31.IR mesg (1)
32permission
33set to
34.BR yes .
35The message can be given as an argument to
36.IR wall ,
37or it can be sent to
38.IR wall 's
39standard input. When using the standard input from a terminal,
40the message should be terminated with the
41.B EOF
42key (usually Control-D).
43.PP
44The length of the message is limited to 20 lines.
45For every invocation of
46.I wall
47a notification will be written to syslog, with facility
48.B LOG_USER
49and level
50.BR LOG_INFO .
51
52.SH OPTIONS
53.IP \fB\-n\fn
54Suppresses the normal banner printed by
55.IR wall ,
56changing it to "Remote broadcast message".
57This option is only available for root if
58.I wall
59is installed set-group-id, and is used by
60.IR rpc.walld (8).
61.PP
62
63.SH ENVIRONMENT
64.I Wall
65ignores the
66.B TZ
67variable - the time printed in the banner is based on the system's
68local time.
69
70.SH SEE ALSO
71.IR mesg (1),
72.IR rpc.rwalld (8).
73
74.SH AUTHOR
75Miquel van Smoorenburg, miquels@cistron.nl