xref: /freebsd/usr.bin/pom/pom.6 (revision 6829dae12bb055451fa467da4589c43bd03b1e64)
1.\" Copyright (c) 1989, 1993
2.\"	The Regents of the University of California.  All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\"    notice, this list of conditions and the following disclaimer.
9.\" 2. Redistributions in binary form must reproduce the above copyright
10.\"    notice, this list of conditions and the following disclaimer in the
11.\"    documentation and/or other materials provided with the distribution.
12.\" 3. Neither the name of the University nor the names of its contributors
13.\"    may be used to endorse or promote products derived from this software
14.\"    without specific prior written permission.
15.\"
16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26.\" SUCH DAMAGE.
27.\"
28.\"	@(#)pom.6	8.1 (Berkeley) 5/31/93
29.\" $FreeBSD$
30.\"
31.Dd July 14, 2010
32.Dt POM 6
33.Os
34.Sh NAME
35.Nm pom
36.Nd display the phase of the moon
37.Sh SYNOPSIS
38.Nm
39.Op Fl p
40.Op Fl d Ar yyyy.mm.dd
41.Op Fl t Ar hh:mm:ss
42.Sh DESCRIPTION
43The
44.Nm
45utility displays the current phase of the moon.
46Useful for selecting software completion target dates and predicting
47managerial behavior.
48.Pp
49Use the
50.Fl p
51option to print just the phase as a percentage.
52.Pp
53Use the arguments
54.Fl d
55and
56.Fl t
57to specify a specific date and time for which the phase of the moon
58has to be calculated.
59If
60.Fl d
61but not
62.Fl t
63has been specified, it will calculate the phase of the moon on that
64day at midnight.
65.Sh SEE ALSO
66`Practical Astronomy with Your Calculator' by Duffett-Smith.
67