Adding upstream version 2.33.1.upstream/2.33.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 118 insertions, 0 deletions

diff --git a/term-utils/mesg.1 b/term-utils/mesg.1
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+.\" Copyright (c) 1987, 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)mesg.1	8.1 (Berkeley) 6/6/93
+.\"
+.TH MESG 1 "July 2014" "util-linux" "User Commands"
+.SH NAME
+mesg \- display (or do not display) messages from other users
+.SH SYNOPSIS
+.B mesg
+[option]
+.RB [ n | y ]
+.SH DESCRIPTION
+The
+.B mesg
+utility is invoked by a user to control write access others have to the
+terminal device associated with standard error output.  If write access
+is allowed, then programs such as
+.BR talk (1)
+and
+.BR write (1)
+may display messages on the terminal.
+.PP
+Traditionally, write access is allowed by default.  However, as users
+become more conscious of various security risks, there is a trend to remove
+write access by default, at least for the primary login shell.  To make
+sure your ttys are set the way you want them to be set,
+.B mesg
+should be executed in your login scripts.
+.PP
+The
+.B mesg
+utility silently exits with error status 2 if the current standard error output does
+not refer to the terminal.  In this case execute
+.B mesg
+is pointless.  The command line option \fB\-\-verbose\fR forces
+mesg to print a warning in this situation.  This behaviour has been introduced
+in version 2.33.
+.SH ARGUMENTS
+.TP
+.B n
+Disallow messages.
+.TP
+.B y
+Allow messages to be displayed.
+.PP
+If no arguments are given,
+.B mesg
+shows the current message status on standard error output.
+.SH OPTIONS
+.TP
+.BR \-v , " \-\-verbose"
+Explain what is being done.
+.TP
+.BR \-V , " \-\-version"
+Display version information and exit.
+.TP
+.BR \-h , " \-\-help"
+Display help text and exit.
+.SH EXIT STATUS
+The
+.B mesg
+utility exits with one of the following values:
+.RS 4
+.TP
+.B "\ 0"
+Messages are allowed.
+.TP
+.B "\ 1"
+Messages are not allowed.
+.TP
+.B ">1"
+An error has occurred.
+.RE
+.SH FILES
+.I /dev/[pt]ty[pq]?
+.SH "SEE ALSO"
+.BR login (1),
+.BR talk (1),
+.BR write (1),
+.BR wall (1),
+.BR xterm (1)
+.SH HISTORY
+A
+.B mesg
+command appeared in Version 6 AT&T UNIX.
+
+.SH AVAILABILITY
+The mesg command is part of the util-linux package and is available from
+https://www.kernel.org/pub/linux/utils/util-linux/.