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Annotation of 43BSDReno/usr.bin/tty/tty.1, revision 1.1.1.1

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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