xref: /freebsd/usr.bin/ncal/ncal.1 (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1.\" Copyright (c) 1997 Wolfgang Helbig
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25.\" $FreeBSD$
26.\"
27.Dd October 23, 2005
28.Dt CAL 1
29.Os
30.Sh NAME
31.Nm cal ,
32.Nm ncal
33.Nd displays a calendar and the date of easter
34.Sh SYNOPSIS
35.Nm
36.Op Fl jy
37.Oo
38.Op Ar month
39.Ar year
40.Oc
41.Nm
42.Op Fl j
43.Fl m Ar month
44.Op Ar year
45.Nm ncal
46.Op Fl jJpwy
47.Op Fl s Ar country_code
48.Oo
49.Op Ar month
50.Ar year
51.Oc
52.Nm ncal
53.Op Fl Jeo
54.Op Ar year
55.Sh DESCRIPTION
56The
57.Nm
58utility displays a simple calendar in traditional format and
59.Nm ncal
60offers an alternative layout, more options and the date of easter.
61The new format is a little cramped but it makes a year fit
62on a 25x80 terminal.
63If arguments are not specified,
64the current month is displayed.
65.Pp
66The options are as follows:
67.Bl -tag -width indent
68.It Fl J
69Display Julian Calendar, if combined with the
70.Fl e
71option, display date of easter according to the Julian Calendar.
72.It Fl e
73Display date of easter (for western churches).
74.It Fl j
75Display Julian days (days one-based, numbered from January 1).
76.It Fl m Ar month
77Display the specified
78.Ar month .
79.It Fl o
80Display date of orthodox easter (Greek and Russian
81Orthodox Churches).
82.It Fl p
83Print the country codes and switching days from Julian to Gregorian
84Calendar as they are assumed by
85.Nm ncal .
86The country code as determined from the local environment is marked
87with an asterisk.
88.It Fl s Ar country_code
89Assume the switch from Julian to Gregorian Calendar at the date
90associated with the
91.Ar country_code .
92If not specified,
93.Nm ncal
94tries to guess the switch date from the local environment or
95falls back to September 2, 1752.
96This was when Great
97Britain and her colonies switched to the Gregorian Calendar.
98.It Fl w
99Print the number of the week below each week column.
100.It Fl y
101Display a calendar for the specified year.
102.El
103.Pp
104A single parameter specifies the year (1 - 9999) to be displayed;
105note the year must be fully specified:
106.Dq Li cal 89
107will
108.Em not
109display a calendar for 1989.
110Two parameters denote the month and year; the month is either a number between
1111 and 12, or a full or abbreviated name as specified by the current locale.
112Month and year default to those of the current system clock and time zone (so
113.Dq Li cal -m 8
114will display a calendar for the month of August in the current year).
115.Pp
116A year starts on Jan 1.
117.Sh SEE ALSO
118.Xr calendar 3 ,
119.Xr strftime 3
120.Sh HISTORY
121A
122.Nm
123command appeared in
124.At v5 .
125The
126.Nm ncal
127command appeared in
128.Fx 2.2.6 .
129.Sh AUTHORS
130The
131.Nm ncal
132command and manual were written by
133.An Wolfgang Helbig Aq helbig@FreeBSD.org .
134.Sh BUGS
135The assignment of Julian\(emGregorian switching dates to
136country codes is historically naive for many countries.
137.Pp
138The
139.Nm
140utility does not recognize multibyte characters.
141