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Annotation of src/usr.bin/tty/tty.1, Revision 1.9

1.9     ! aaron       1: .\"    $OpenBSD: tty.1,v 1.8 2000/03/06 03:16:00 aaron Exp $
1.1       deraadt     2: .\"    $NetBSD: tty.1,v 1.4 1994/12/07 00:46:55 jtc Exp $
                      3: .\"
                      4: .\" Copyright (c) 1990, 1993
                      5: .\"    The Regents of the University of California.  All rights reserved.
                      6: .\"
                      7: .\" This code is derived from software contributed to Berkeley by
                      8: .\" the Institute of Electrical and Electronics Engineers, Inc.
                      9: .\"
                     10: .\" Redistribution and use in source and binary forms, with or without
                     11: .\" modification, are permitted provided that the following conditions
                     12: .\" are met:
                     13: .\" 1. Redistributions of source code must retain the above copyright
                     14: .\"    notice, this list of conditions and the following disclaimer.
                     15: .\" 2. Redistributions in binary form must reproduce the above copyright
                     16: .\"    notice, this list of conditions and the following disclaimer in the
                     17: .\"    documentation and/or other materials provided with the distribution.
                     18: .\" 3. All advertising materials mentioning features or use of this software
                     19: .\"    must display the following acknowledgement:
                     20: .\"    This product includes software developed by the University of
                     21: .\"    California, Berkeley and its contributors.
                     22: .\" 4. Neither the name of the University nor the names of its contributors
                     23: .\"    may be used to endorse or promote products derived from this software
                     24: .\"    without specific prior written permission.
                     25: .\"
                     26: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     27: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     28: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     29: .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     30: .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     31: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     32: .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     33: .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     34: .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     35: .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     36: .\" SUCH DAMAGE.
                     37: .\"
                     38: .\"    @(#)tty.1       8.1 (Berkeley) 6/6/93
                     39: .\"
                     40: .Dd June 6, 1993
                     41: .Dt TTY 1
                     42: .Os
                     43: .Sh NAME
                     44: .Nm tty
                     45: .Nd return user's terminal name
                     46: .Sh SYNOPSIS
                     47: .Nm tty
                     48: .Op Fl s
                     49: .Sh DESCRIPTION
                     50: The
1.9     ! aaron      51: .Nm
1.1       deraadt    52: utility writes the name of the terminal attached to standard input
                     53: to standard output.
                     54: The name that is written is the string returned by
                     55: .Xr ttyname 3 .
1.9     ! aaron      56: .Pp
        !            57: If the standard input is not a terminal, the message
        !            58: .Dq not a tty
1.1       deraadt    59: is written.
1.9     ! aaron      60: .Pp
1.1       deraadt    61: The options are as follows:
                     62: .Bl -tag -width Ds
                     63: .It Fl s
                     64: Don't write the terminal name; only the exit status is affected
                     65: when this option is specified.
                     66: The
                     67: .Fl s
                     68: option is deprecated in favor of the
                     69: .Dq Li "test -t 0"
                     70: command.
                     71: .El
                     72: .Pp
1.9     ! aaron      73: The
        !            74: .Nm
        !            75: utility exits 0 if the standard input is a terminal, 1 if the standard input
        !            76: is not a terminal, or >1 if an error occurred.
1.1       deraadt    77: .Sh SEE ALSO
1.6       aaron      78: .Xr stty 1 ,
1.1       deraadt    79: .Xr test 1 ,
1.6       aaron      80: .Xr ttyname 3 ,
                     81: .Xr tty 4
1.1       deraadt    82: .Sh STANDARDS
                     83: The
1.9     ! aaron      84: .Nm
1.4       aaron      85: utility conforms to
1.1       deraadt    86: .St -p1003.2-92 .
1.8       aaron      87: .Sh HISTORY
                     88: A
                     89: .Nm
                     90: command appeared in
                     91: .At v1 .