Интерактивная система просмотра системных руководств (man-ов)
mesg (1)
>> mesg (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
mesg (1) ( FreeBSD man: Команды и прикладные программы пользовательского уровня )
mesg (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
mesg (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
mesg (1) ( POSIX man: Команды и прикладные программы пользовательского уровня )
NAME
mesg - permit or deny messages
SYNOPSIS
mesg [-n | -y | n | y]
DESCRIPTION
The mesg utility will control whether other users are allowed to send messages via write(1), talk(1), or other utilities to a terminal device. The terminal device affected is determined by searching for the first terminal in the sequence of devices associated with standard input, standard output, and standard error, respectively. With no arguments, mesg
reports the current state without changing it. Processes with appropriate privileges may be able to send messages to the terminal independent of the current state.
OPTIONS
The following options are supported:
-n|n
Denies permission to other users to send message to the terminal. See write(1).
-y|y
Grants permission to other users to send messages to the terminal.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of mesg: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0
if messages are receivable.
1
if messages are not receivable.
2
on error.
FILES
/dev/tty*
terminal devices
/dev/pts/*
terminal devices
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: