HP-UX Reference (11i v2 03/08) - 1 User Commands A-M (vol 1)

mesg(1) mesg(1)

NAME

mesg - permit or deny messages to terminal

SYNOPSIS

mesg [[-] g ][[-

] y ][[-] n ]

mesg

DESCRIPTION

The command form mesg [-] n

forbids messages via write by revoking write permission to users

without appropriate privilege on the user’s terminal (see write(1)). The command form

mesg [-] g rein-

states permission so that only legitimate commands (such as write(1)) can be used by other users to send

messages.

mesg [-] y allows applications such as

write or talk to send messages to the user’s termi-

nal (that is, without restrictions).

mesg without any other argument reports the current state without

changing it.

RETURN VALUE

mesg returns the following values:

0 Messages are receivable.

1 Messages are not receivable.

2 An error occurred.

EXTERNAL INFLUENCES

Environment Variables

LC_MESSAGES determines the language in which messages are displayed.

LC_MESSAGES is not speciﬁed in the environment or is set to the empty string, the value of

LANG is

used as a default for each unspeciﬁed or empty variable. If

LANG is not speciﬁed or is set to the empty

string, a default of "C" (see lang(5)) is used instead of LANG.

If any internationalization variable contains an invalid setting,

mesg behaves as if all internationaliza-

tion variables are set to "C". See environ(5).

FILES

/dev/tty*