freebsd-dev/games/pom/pom.6
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.\" @(#)pom.6 8.1 (Berkeley) 5/31/93
.\" $FreeBSD$
.\"
.Dd July 14, 2010
.Dt POM 6
.Os
.Sh NAME
.Nm pom
.Nd display the phase of the moon
.Sh SYNOPSIS
.Nm
.Op Fl p
.Op Fl d Ar yyyy.mm.dd
.Op Fl t Ar hh:mm:ss
.Sh DESCRIPTION
The
.Nm
utility displays the current phase of the moon.
Useful for selecting software completion target dates and predicting
managerial behavior.
.Pp
Use the
.Fl p
option to print just the phase as a percentage.
.Pp
Use the arguments
.Fl d
and
.Fl t
to specify a specific date and time for which the phase of the moon
has to be calculated.
If
.Fl d
but not
.Fl t
has been specified, it will calculate the phase of the moon on that
day at midnight.
.Sh SEE ALSO
`Practical Astronomy with Your Calculator' by Duffett-Smith.