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Annotation of 43BSDReno/usr.bin/tty/tty.1, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1990 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"     @(#)tty.1      6.3 (Berkeley) 6/24/90
        !            19: .\"
        !            20: .TH TTY 1 "%Q"
        !            21: .UC 7
        !            22: .SH NAME
        !            23: tty \- return user's terminal name
        !            24: .SH SYNOPSIS
        !            25: .B tty
        !            26: [ -s ]
        !            27: .SH DESCRIPTION
        !            28: The
        !            29: .I tty
        !            30: utility writes the name of the terminal attached to standard input
        !            31: to standard output.
        !            32: The name that is written is the string returned by
        !            33: .IR ttyname (3).
        !            34: If the standard input is not a terminal, the message ``not a tty''
        !            35: is written.
        !            36: The options are as follows:
        !            37: .TP
        !            38: -s
        !            39: Don't write the terminal name; only the exit status is affected
        !            40: when this option is specified.
        !            41: The
        !            42: .I -s
        !            43: option is deprecated in favor of the ``test -t 0'' command.
        !            44: .PP
        !            45: .I Tty
        !            46: exits 0 if the standard input is a terminal, 1 if the standard input is
        !            47: not a terminal, and >1 if an error occurs.
        !            48: .SH SEE\ ALSO
        !            49: test(1), ttyname(3)
        !            50: .SH STANDARDS
        !            51: The
        !            52: .I tty
        !            53: function is expected to be POSIX 1003.2 compatible.

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