163 lines
5.5 KiB
Groff
163 lines
5.5 KiB
Groff
.\" $NetBSD: cal.1,v 1.18 2003/08/07 11:13:13 agc Exp $
|
|
.\"
|
|
.\" Copyright (c) 1989, 1990, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to Berkeley by
|
|
.\" Kim Letkeman.
|
|
.\"
|
|
.\" 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.
|
|
.\" 3. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
.\"
|
|
.\" @(#)cal.1 8.2 (Berkeley) 4/28/95
|
|
.\"
|
|
.Dd July 23, 2003
|
|
.Dt CAL 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm cal
|
|
.Nd displays a calendar
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl hjry3
|
|
.Op Fl A Ar after
|
|
.Op Fl B Ar before
|
|
.Op Fl d Ar day-of-week
|
|
.Op Fl R Ar reform-spec
|
|
.Op Oo Ar month Oc Ar year
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
displays a simple calendar.
|
|
If arguments are not specified,
|
|
the current month is displayed.
|
|
The options are as follows:
|
|
.Bl -tag -width Ds
|
|
.It Fl A Ar after
|
|
Display
|
|
.Ar after
|
|
months after the specified month.
|
|
.It Fl B Ar before
|
|
Display
|
|
.Ar before
|
|
months before the specified month.
|
|
.It Fl d Ar day-of-week
|
|
Specifies the day of the week on which the calendar should start.
|
|
Valid values are 0 through 6, presenting Sunday through Saturday,
|
|
inclusively.
|
|
The default output starts on Sundays.
|
|
.It Fl h
|
|
Highlight the current day, if present in the displayed calendar.
|
|
If output is to a terminal, then the appropriate terminal sequences
|
|
are used, otherwise overstriking is used.
|
|
If more than one
|
|
.Fl h
|
|
is used and output is to a terminal, the current date will be
|
|
highlighted in inverse video instead of bold.
|
|
.It Fl j
|
|
Display Julian dates (days one-based, numbered from January 1).
|
|
.It Fl R Ar reform-spec
|
|
Selects an alternate Gregorian reform point from the default of
|
|
September 3rd, 1752.
|
|
The
|
|
.Ar reform-spec
|
|
can be selected by one of the built-in names (see
|
|
.Sx NOTES
|
|
for a list) or by a date of the form YYYY/MM/DD.
|
|
The date and month may be omitted, provided that what is specified
|
|
uniquely selects a given built-in reform point.
|
|
If an exact date is specified, then that date is taken to be the first
|
|
missing date of the Gregorian Reform to be applied.
|
|
.It Fl r
|
|
Display the month in which the Gregorian Reform adjustment was
|
|
applied, if no other
|
|
.Ar month
|
|
or
|
|
.Ar year
|
|
information is given.
|
|
If used in conjunction with
|
|
.Fl y ,
|
|
then the entire year is displayed.
|
|
.It Fl y
|
|
Display a calendar for the current year.
|
|
.It Fl 3
|
|
Same as
|
|
.Dq Fl A Ar 1 Fl B Ar 1 .
|
|
.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.
|
|
If no parameters are specified, the current month's calendar is
|
|
displayed.
|
|
.Pp
|
|
A year starts on Jan 1.
|
|
.Sh NOTES
|
|
In the USA and Great Britain the Gregorian Reformation occurred in 1752.
|
|
By this time, most countries had recognized the reformation (although a
|
|
few did not recognize it until the 1900's.)
|
|
Eleven days following September 2, 1752 were eliminated by the reformation,
|
|
so the calendar for that month is a bit unusual.
|
|
.Pp
|
|
In view of the chaotic way the Gregorian calendar was adopted throughout
|
|
the world in the years between 1582 and 1928 make sure to take into account
|
|
the date of the Gregorian Reformation in your region if you are checking a
|
|
calendar for a very old date.
|
|
.Pp
|
|
.Nm
|
|
has a decent built-in list of Gregorian Reform dates and the names of
|
|
the countries where the reform was adopted:
|
|
.Pp
|
|
.Bd -literal
|
|
Italy Oct. 5, 1582 Denmark Feb. 19, 1700
|
|
Spain Oct. 5, 1582 Great Britain Sep. 3, 1752
|
|
Portugal Oct. 5, 1582 Sweden Feb. 18, 1753
|
|
Poland Oct. 5, 1582 Finland Feb. 18, 1753
|
|
France Dec. 12, 1582 Japan Dec. 20, 1872
|
|
Luxembourg Dec. 22, 1582 China Nov. 7, 1911
|
|
Netherlands Dec. 22, 1582 Bulgaria Apr. 1, 1916
|
|
Bavaria Oct. 6, 1583 U.S.S.R. Feb. 1, 1918
|
|
Austria Jan. 7, 1584 Serbia Jan. 19, 1919
|
|
Switzerland Jan. 12, 1584 Romania Jan. 19, 1919
|
|
Hungary Oct. 22, 1587 Greece Mar. 10, 1924
|
|
Germany Feb. 19, 1700 Turkey Dec. 19, 1925
|
|
Norway Feb. 19, 1700 Egypt Sep. 18, 1928
|
|
.Ed
|
|
.Pp
|
|
The country known as
|
|
.Em Great Britain
|
|
can also be referred to as
|
|
.Em England
|
|
since that has less letters and no spaces in it.
|
|
This is meant only as a measure of expediency, not as a possible
|
|
slight to anyone involved.
|
|
.Sh HISTORY
|
|
A
|
|
.Nm
|
|
command appeared in
|
|
.At v6 .
|