xref: /freebsd/usr.bin/pom/pom.6 (revision 1719886f6d08408b834d270c59ffcfd821c8f63a)
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.Dd July 14, 2010
29.Dt POM 6
30.Os
31.Sh NAME
32.Nm pom
33.Nd display the phase of the moon
34.Sh SYNOPSIS
35.Nm
36.Op Fl p
37.Op Fl d Ar yyyy.mm.dd
38.Op Fl t Ar hh:mm:ss
39.Sh DESCRIPTION
40The
41.Nm
42utility displays the current phase of the moon.
43Useful for selecting software completion target dates and predicting
44managerial behavior.
45.Pp
46Use the
47.Fl p
48option to print just the phase as a percentage.
49.Pp
50Use the arguments
51.Fl d
52and
53.Fl t
54to specify a specific date and time for which the phase of the moon
55has to be calculated.
56If
57.Fl d
58but not
59.Fl t
60has been specified, it will calculate the phase of the moon on that
61day at midnight.
62.Sh SEE ALSO
63`Practical Astronomy with Your Calculator' by Duffett-Smith.
64