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.\" $FreeBSD$ 26.\" 27.Dd March 14, 2009 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 3hjy 37.Op Fl A Ar number 38.Op Fl B Ar number 39.Oo 40.Op Ar month 41.Ar year 42.Oc 43.Nm 44.Op Fl 3hj 45.Op Fl A Ar number 46.Op Fl B Ar number 47.Fl m Ar month 48.Op Ar year 49.Nm ncal 50.Op Fl 3hjJpwy 51.Op Fl A Ar number 52.Op Fl B Ar number 53.Op Fl s Ar country_code 54.Oo 55.Op Ar month 56.Ar year 57.Oc 58.Nm ncal 59.Op Fl 3hJeo 60.Op Fl A Ar number 61.Op Fl B Ar number 62.Op Ar year 63.Nm ncal 64.Op Fl CN 65.Op Fl H Ar yyyy-mm-dd 66.Op Fl d Ar yyyy-mm 67.Sh DESCRIPTION 68The 69.Nm 70utility displays a simple calendar in traditional format and 71.Nm ncal 72offers an alternative layout, more options and the date of Easter. 73The new format is a little cramped but it makes a year fit 74on a 25x80 terminal. 75If arguments are not specified, 76the current month is displayed. 77.Pp 78The options are as follows: 79.Bl -tag -width indent 80.It Fl h 81Turns off highlighting of today. 82.It Fl J 83Display Julian Calendar, if combined with the 84.Fl e 85option, display date of Easter according to the Julian Calendar. 86.It Fl e 87Display date of Easter (for western churches). 88.It Fl j 89Display Julian days (days one-based, numbered from January 1). 90.It Fl m Ar month 91Display the specified 92.Ar month . 93If 94.Ar month 95is specified as a decimal number, it may be followed by the letter 96.Ql f 97or 98.Ql p 99to indicate the following or preceding month of that number, 100respectively. 101.It Fl o 102Display date of Orthodox Easter (Greek and Russian 103Orthodox Churches). 104.It Fl p 105Print the country codes and switching days from Julian to Gregorian 106Calendar as they are assumed by 107.Nm ncal . 108The country code as determined from the local environment is marked 109with an asterisk. 110.It Fl s Ar country_code 111Assume the switch from Julian to Gregorian Calendar at the date 112associated with the 113.Ar country_code . 114If not specified, 115.Nm ncal 116tries to guess the switch date from the local environment or 117falls back to September 2, 1752. 118This was when Great 119Britain and her colonies switched to the Gregorian Calendar. 120.It Fl w 121Print the number of the week below each week column. 122.It Fl y 123Display a calendar for the specified year. 124.It Fl 3 125Display the previous, current and next month surrounding today. 126.It Fl A Ar number 127Display the 128.Ar number 129of months after the current month. 130.It Fl B Ar number 131Display the 132.Ar number 133of months before the current month. 134.It Fl C 135Switch to 136.Nm cal 137mode. 138.It Fl N 139Switch to 140.Nm ncal 141mode. 142.It Fl d Ar yyyy-mm 143Use 144.Ar yyyy-mm 145as the current date (for debugging of date selection). 146.It Fl H Ar yyyy-mm-dd 147Use 148.Ar yyyy-mm-dd 149as the current date (for debugging of highlighting). 150.El 151.Pp 152A single parameter specifies the year (1\(en9999) to be displayed; 153note the year must be fully specified: 154.Dq Li cal 89 155will 156.Em not 157display a calendar for 1989. Two parameters denote the month and 158year; the month is either a number between 1 and 12, or a full or 159abbreviated name as specified by the current locale. Month and 160year default to those of the current system clock and time zone (so 161.Dq Li cal -m 8 162will display a calendar for the month of August in the current 163year). 164.Pp 165Not all options can be used together. For example 166.Dq Li -3 -A 2 -B 3 -y -m 7 167would mean: 168show me the three months around the seventh month, three before 169that, two after that and the whole year. 170.Nm ncal 171will warn about these combinations. 172.Pp 173A year starts on January 1. 174.Pp 175Highlighting of dates is disabled if stdout is not a tty. 176.Sh SEE ALSO 177.Xr calendar 3 , 178.Xr strftime 3 179.Sh HISTORY 180A 181.Nm 182command appeared in 183.At v5 . 184The 185.Nm ncal 186command appeared in 187.Fx 2.2.6 . 188.Sh AUTHORS 189The 190.Nm ncal 191command and manual were written by 192.An Wolfgang Helbig Aq helbig@FreeBSD.org . 193.Sh BUGS 194The assignment of Julian\(enGregorian switching dates to country 195codes is historically naive for many countries. 196.Pp 197Not all options are compatible and using them in different orders 198will give varying results. 199