xref: /freebsd/usr.bin/ncal/ncal.1 (revision 0cb2e609d9c2f0ceaf730a57ac5c11580058e7f4)

/*-
 * Copyright (c) 1997 Wolfgang Helbig
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	$Id$
 */
.Dd December 16, 1997
.Dt CAL 1
.Os
.Sh NAME
.Nm cal ,
.Nm ncal
.Nd displays a calendar and the date of easter
.Sh SYNOPSIS
.Nm cal
.Op Fl jy
.Op Oo Ar month Oc Ar \ year
.Nm ncal
.Op Fl jJpwy
.Op Fl s Ar country code
.Op Oo Ar month Oc Ar \ year
.Nm ncal
.Op Fl Jeo
.Op Ar year
.Sh DESCRIPTION
.Nm Cal
displays a simple calendar in traditional format and
.Nm ncal
offers an alternative layout, more options and the date of easter.
The new format is a little cramped but it makes a year fit
on a 25x80 terminal.
If arguments are not specified,
the current month is displayed.
The options are as follows:
.Bl -tag -width Ds
.It Fl J
Display Julian Calendar, if combined with the
.Fl e
option, display date of easter according in the Julian Calendar.
If not specified, the Gregorian Calendar is assumed after
the switch date and Julian before. (See below)
.It Fl e
Display date of easter (for western churches).
.It Fl j
Display julian days (days one-based, numbered from January 1).
.It Fl o
Display date of orthodox easter (Greek and Russian
Orthodox Churches).
.It Fl p
Print the country codes and switch dates from Julian to Gregorian
Calendar as they are assumed by
.Nm ncal .
.It Fl s Ar country-code
Assume the switch from Julian to Gregorian Calendar at the date
associated with the
.Ar country-code .
If not specified,
.Nm ncal
assumes October 4, 1582 (on this day the Catholic Church switched to Gregorian
Calendar) and
.Nm cal
thinks with Great Britain and her colonies that
September 2, 1752 was the date to switch.
.It Fl w
Print the number of the week in the year below each week displayed.
.It Fl y
Display a calendar for the current year.
.El
.Pp
A single parameter specifies the year (1 - 9999) to be displayed;
note the year must be fully specified:
.Dq Li cal 89
will
.Em not
display a calendar for 1989.
Two parameters denote the month (1 - 12) and year.
.Pp
A year starts on Jan 1.
.Pp
.Sh SEE ALSO
.Xr calendar 3 ,
.Xr strftime 3
.Rs
.Sh HISTORY
A
.Nm cal
command appeared in
.At v6 .
The
.Nm ncal
command appeared in
.Fx 3.0 .
.Sh AUTHOR
This
manual page and the command was written by
.An Wolfgang Helbig Aq helbig@FreeBSD.ORG .