mesg

mesg is a Unix command that sets or reports the permission other users have to write to your terminal using the talk and write commands.

mesg
Developer(s)AT&T Bell Laboratories
Initial releaseNovember 3, 1971 (1971-11-03)
Operating systemUnix and Unix-like
TypeCommand

Usage

It is invoked as:

mesg [y|n]

The 'y' and 'n' options respectively allow and disallow write access to your terminal. When invoked with no option, the current permission is printed.

Input redirection may be used to control the permission of another TTY. For example:

% mesg
is y
% tty
/dev/tty1
% mesg < /dev/tty2
is y
% mesg n < /dev/tty2
% mesg < /dev/tty2
is n
% mesg
is y

See also

References

  • mesg  Commands & Utilities Reference, The Single UNIX Specification, Issue 7 from The Open Group
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