1.\" Copyright (c) 1997 Wolfgang Helbig 2.\" 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.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 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 1.4 2005/07/31 11:46:52 asmodai 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. 99Two parameters denote the month and year; the month is either a number between 1001 and 12, or a full or abbreviated name as specified by the current locale. 101.Pp 102A year starts on Jan 1. 103.Sh DIAGNOSTICS 104The 105.Nm 106utility returns 0 on success or >0 if an error occurred. 107.Sh SEE ALSO 108.Xr calendar 3 , 109.Xr strftime 3 110.Sh STANDARDS 111The 112.Nm 113utility conforms to 114.St -p1003.1-2004 115and is ahead of the standard with locale-specific Gregorian adoption details. 116.Sh HISTORY 117A 118.Nm 119command appeared in 120.At v5 . 121The 122.Nm ncal 123command appeared in 124.Fx 2.2.6 . 125.Sh AUTHORS 126The 127.Nm ncal 128command and manual were written by 129.An Wolfgang Helbig Aq helbig@FreeBSD.org . 130.Sh BUGS 131The assignment of Julian - Gregorian switching dates to 132country codes is historically naive for many countries. 133