Annotation of src/usr.bin/tty/tty.1, Revision 1.5
1.5 ! aaron 1: .\" $OpenBSD: tty.1,v 1.4 1999/06/05 01:21:44 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.
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7: .\" This code is derived from software contributed to Berkeley by
8: .\" the Institute of Electrical and Electronics Engineers, Inc.
9: .\"
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11: .\" modification, are permitted provided that the following conditions
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21: .\" California, Berkeley and its contributors.
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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
51: .Nm tty
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 .
56: If the standard input is not a terminal, the message ``not a tty''
57: is written.
58: The options are as follows:
59: .Bl -tag -width Ds
60: .It Fl s
61: Don't write the terminal name; only the exit status is affected
62: when this option is specified.
63: The
64: .Fl s
65: option is deprecated in favor of the
66: .Dq Li "test -t 0"
67: command.
68: .El
69: .Pp
1.3 aaron 70: .Nm tty
1.1 deraadt 71: exits 0 if the standard input is a terminal, 1 if the standard input is
1.3 aaron 72: not a terminal, or >1 if an error occurred.
1.1 deraadt 73: .Sh SEE ALSO
74: .Xr test 1 ,
1.5 ! aaron 75: .Xr isatty 3 ,
1.1 deraadt 76: .Xr ttyname 3
77: .Sh STANDARDS
78: The
79: .Nm tty
1.4 aaron 80: utility conforms to
1.1 deraadt 81: .St -p1003.2-92 .