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 fol...
NAMEmesg - display (or do not display) messages from other users
SYNOPSISmesg [option] [n|y]
DESCRIPTIONThe 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 talk(1) and write(1) may display messages on the terminal.
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, mesg should be executed in your login scripts.
- Disallow messages.
- Allow messages to be displayed.
If no arguments are given, mesg shows the current message status on standard error output.
- -v, --verbose
- Explain what is being done.
- -V, --version
- Display version information and exit.
- -h, --help
- Display help text and exit.
EXIT STATUSThe mesg utility exits with one of the following values:
- Messages are allowed.
- Messages are not allowed.
- An error has occurred.