1.\" $NetBSD: wall.1,v 1.7 2003/08/07 11:17:14 agc Exp $ 2.\" 3.\" Copyright (c) 1989, 1990, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)wall.1 8.1 (Berkeley) 6/6/93 31.\" 32.Dd March 27, 2003 33.Dt WALL 1 34.Os 35.Sh NAME 36.Nm wall 37.Nd write a message to users 38.Sh SYNOPSIS 39.Nm 40.Op Fl g Ar group 41.Op Ar file 42.Sh DESCRIPTION 43.Nm 44displays the contents of 45.Ar file 46or, by default, its standard input, on the terminals of all 47currently logged in users. 48.Pp 49Only the super-user can write on the 50terminals of users who have chosen 51to deny messages or are using a program which 52automatically denies messages. 53.Bl -tag -width indent 54.It Fl g 55Send messages to users in this group. 56This option may be specified multiple times, and any user in any of the 57specified groups will receive the message. 58.El 59.Sh SEE ALSO 60.Xr mesg 1 , 61.Xr talk 1 , 62.Xr write 1 , 63.Xr shutdown 8 64.Sh HISTORY 65A 66.Nm 67command appeared in 68.At v7 . 69Support for 70.Fl g 71was added in 72.Nx 2.0 73(from 74.Ox 2.0 ) . 75