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32 .\" @(#)mesg.1 8.1 (Berkeley) 6/6/93
33 .\" $FreeBSD: src/usr.bin/mesg/mesg.1,v 1.7.2.1 2001/12/14 15:53:30 ru Exp $
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41 .Nd display (do not display) messages from other users
48 utility is invoked by a user to control write access others
49 have to a terminal device.
50 Write access is allowed by default, and programs such as
54 may display messages on the terminal.
56 The first terminal device in the sequence of devices associated with standard
57 input, standard output and standard error is affected.
64 Permits messages to be displayed.
67 If no arguments are given,
69 displays the present message status to the standard output.
71 Disallow messages from other users to the current terminal:
75 Allow messages from other users to
77 (assuming you are also logged in on that terminal):
79 .Dl "mesg y </dev/ttyp1"
83 utility exits with one of the following values:
84 .Bl -tag -width flag -compact -offset indent
89 Messages are not allowed.
91 An error has occurred.
94 Previous versions of the
96 utility wrote the message status to the standard error output and
97 affected the terminal attached to standard error without first trying the
98 standard input or output devices.