124 lines
3.5 KiB
Groff
124 lines
3.5 KiB
Groff
.\" Copyright (c) 1997 Wolfgang Helbig
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd December 16, 1997
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.Dt CAL 1
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.Os
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.Sh NAME
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.Nm cal ,
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.Nm ncal
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.Nd displays a calendar and the date of easter
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.Sh SYNOPSIS
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.Nm
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.Op Fl jy
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.Oo
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.Op Ar month
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.Ar year
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.Oc
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.Nm ncal
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.Op Fl jJpwy
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.Op Fl s Ar country_code
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.Oo
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.Op Ar month
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.Ar year
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.Oc
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.Nm ncal
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.Op Fl Jeo
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.Op Ar year
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.Sh DESCRIPTION
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.Nm Cal
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displays a simple calendar in traditional format and
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.Nm ncal
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offers an alternative layout, more options and the date of easter.
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The new format is a little cramped but it makes a year fit
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on a 25x80 terminal.
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If arguments are not specified,
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the current month is displayed.
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.Pp
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The options are as follows:
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.Bl -tag -width indent
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.It Fl J
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Display Julian Calendar, if combined with the
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.Fl e
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option, display date of easter according to the Julian Calendar.
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.It Fl e
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Display date of easter (for western churches).
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.It Fl j
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Display Julian days (days one-based, numbered from January 1).
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.It Fl o
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Display date of orthodox easter (Greek and Russian
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Orthodox Churches).
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.It Fl p
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Print the country codes and switching days from Julian to Gregorian
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Calendar as they are assumed by
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.Nm ncal .
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The country code as determined from the local environment is marked
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with an asterisk.
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.It Fl s Ar country_code
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Assume the switch from Julian to Gregorian Calendar at the date
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associated with the
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.Ar country_code .
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If not specified,
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.Nm ncal
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tries to guess the switch date from the local environment or
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falls back to September 2, 1752. This was when Great
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Britain and her colonies switched to the Gregorian Calendar.
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.It Fl w
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Print the number of the week below each week column.
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.It Fl y
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Display a calendar for the current year.
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.El
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.Pp
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A single parameter specifies the year (1 - 9999) to be displayed;
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note the year must be fully specified:
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.Dq Li cal 89
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will
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.Em not
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display a calendar for 1989.
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Two parameters denote the month (1 - 12) and year.
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.Pp
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A year starts on Jan 1.
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.Sh SEE ALSO
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.Xr calendar 3 ,
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.Xr strftime 3
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.Sh HISTORY
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A
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.Nm
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command appeared in
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.At v6 .
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The
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.Nm ncal
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command appeared in
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.Fx 2.2.6 .
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.Sh AUTHORS
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The
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.Nm ncal
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command and manual were written by
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.An Wolfgang Helbig Aq helbig@FreeBSD.org .
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.Sh BUGS
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The assignment of Julian - Gregorian switching dates to
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country codes is historically naive for many countries.
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