xref: /dragonfly/usr.bin/ncal/ncal.1 (revision b40e316c)
1.\" Copyright (c) 1997 Wolfgang Helbig
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25.\" $FreeBSD: src/usr.bin/ncal/ncal.1,v 1.8.2.7 2002/10/23 08:10:00 roam Exp $
26.\" $DragonFly: src/usr.bin/ncal/ncal.1,v 1.2 2003/06/17 04:29:29 dillon Exp $
27.\"
28.Dd December 16, 1997
29.Dt CAL 1
30.Os
31.Sh NAME
32.Nm cal ,
33.Nm ncal
34.Nd displays a calendar and the date of easter
35.Sh SYNOPSIS
36.Nm
37.Op Fl jy
38.Oo
39.Op Ar month
40.Ar year
41.Oc
42.Nm ncal
43.Op Fl jJpwy
44.Op Fl s Ar country_code
45.Oo
46.Op Ar month
47.Ar year
48.Oc
49.Nm ncal
50.Op Fl Jeo
51.Op Ar year
52.Sh DESCRIPTION
53The
54.Nm
55utility displays a simple calendar in traditional format and
56.Nm ncal
57offers an alternative layout, more options and the date of easter.
58The new format is a little cramped but it makes a year fit
59on a 25x80 terminal.
60If arguments are not specified,
61the current month is displayed.
62.Pp
63The options are as follows:
64.Bl -tag -width indent
65.It Fl J
66Display Julian Calendar, if combined with the
67.Fl e
68option, display date of easter according to the Julian Calendar.
69.It Fl e
70Display date of easter (for western churches).
71.It Fl j
72Display Julian days (days one-based, numbered from January 1).
73.It Fl o
74Display date of orthodox easter (Greek and Russian
75Orthodox Churches).
76.It Fl p
77Print the country codes and switching days from Julian to Gregorian
78Calendar as they are assumed by
79.Nm ncal .
80The country code as determined from the local environment is marked
81with an asterisk.
82.It Fl s Ar country_code
83Assume the switch from Julian to Gregorian Calendar at the date
84associated with the
85.Ar country_code .
86If not specified,
87.Nm ncal
88tries to guess the switch date from the local environment or
89falls back to September 2, 1752. This was when Great
90Britain and her colonies switched to the Gregorian Calendar.
91.It Fl w
92Print the number of the week below each week column.
93.It Fl y
94Display a calendar for the current year.
95.El
96.Pp
97A single parameter specifies the year (1 - 9999) to be displayed;
98note the year must be fully specified:
99.Dq Li cal 89
100will
101.Em not
102display a calendar for 1989.
103Two parameters denote the month and year; the month is either a number between
1041 and 12, or a full or abbreviated name as specified by the current locale.
105.Pp
106A year starts on Jan 1.
107.Sh SEE ALSO
108.Xr calendar 3 ,
109.Xr strftime 3
110.Sh HISTORY
111A
112.Nm
113command appeared in
114.At v5 .
115The
116.Nm ncal
117command appeared in
118.Fx 2.2.6 .
119.Sh AUTHORS
120The
121.Nm ncal
122command and manual were written by
123.An Wolfgang Helbig Aq helbig@FreeBSD.org .
124.Sh BUGS
125The assignment of Julian - Gregorian switching dates to
126country codes is historically naive for many countries.
127