232 lines
7.2 KiB
Groff
232 lines
7.2 KiB
Groff
.\" Copyright (c) 1989, 1990, 1993
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.\" The Regents of the University of California. 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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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.\" @(#)calendar.1 8.1 (Berkeley) 6/29/93
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.\" $FreeBSD$
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.\"
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.Dd June 29, 1993
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.Dt CALENDAR 1
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.Os
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.Sh NAME
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.Nm calendar
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.Nd reminder service
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.Sh SYNOPSIS
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.Nm
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.Op Fl a
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.Op Fl A Ar num
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.Op Fl B Ar num
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.Op Fl f Ar calendarfile
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.Oo Fl t Ar dd Ns
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.Sm off
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.Op . Ar mm Op . Ar year
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.Sm on
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.Oc
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.Sh DESCRIPTION
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.Nm Calendar
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checks the current directory for a file named
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.Pa calendar
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and displays lines that begin with either today's date
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or tomorrow's.
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On Fridays, events on Friday through Monday are displayed.
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.Pp
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The following options are available:
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.Bl -tag -width Ds
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.It Fl a
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Process the ``calendar'' files of all users and mail the results
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to them.
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This requires super-user privileges.
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.It Fl A Ar num
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Print lines from today and the next
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.Ar num
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days (forward, future).
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.It Fl B Ar num
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Print lines from today and the previous
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.Ar num
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days (backward, past).
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.It Fl f Pa calendarfile
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Use
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.Pa calendarfile
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as the default calendar file.
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.It Xo Fl t
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.Sm off
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.Ar dd
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.Op . Ar mm Op . Ar year
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.Sm on
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.Xc
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For test purposes only: set date directly to argument values.
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.El
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.Pp
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To handle calendars in your national code table you can specify
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.Dq LANG=<locale_name>
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in the calendar file as early as possible.
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To handle national Easter
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names in the calendars
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.Dq Easter=<national_name>
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(for Catholic Easter) or
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.Dq Paskha=<national_name>
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(for Orthodox Easter) can be used.
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.Pp
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Other lines should begin with a month and day.
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They may be entered in almost any format, either numeric or as character
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strings.
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If the proper locale is set, national month and weekday
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names can be used.
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A single asterisk (``*'') matches every month.
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A day without a month matches that day of every week.
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A month without a day matches the first of that month.
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Two numbers default to the month followed by the day.
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Lines with leading tabs default to the last entered date, allowing
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multiple line specifications for a single date.
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.Pp
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``Easter'', is Easter for this year, and may be followed by a positive
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or negative integer.
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.Pp
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``Paskha'', is Orthodox Easter for this year, and may be followed by a
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positive or negative integer.
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.Pp
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Weekdays may be followed by ``-4'' ... ``+5'' (aliases for
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last, first, second, third, fourth) for moving events like
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``the last Monday in April''
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.Pp
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By convention, dates followed by an asterisk are not fixed, i.e., change
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from year to year.
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.Pp
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Day descriptions start after the first <tab> character in the line;
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if the line does not contain a <tab> character, it is not displayed.
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If the first character in the line is a <tab> character, it is treated as
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a continuation of the previous line.
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.Pp
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The ``calendar'' file is preprocessed by
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.Xr cpp 1 ,
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allowing the inclusion of shared files such as lists of company holidays or
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meetings.
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If the shared file is not referenced by a full pathname,
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.Xr cpp 1
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searches in the current (or home) directory first, and then in the
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directory
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.Pa /usr/share/calendar .
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Empty lines and lines protected by the C commenting syntax
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.Pq Li /* ... */
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are ignored.
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.Pp
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Some possible calendar entries (<tab> characters highlighted by
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\fB\et\fR sequence)
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.Bd -unfilled -offset indent
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LANG=C
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Easter=Ostern
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#include <calendar.usholiday>
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#include <calendar.birthday>
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6/15\fB\et\fRJune 15 (if ambiguous, will default to month/day).
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Jun. 15\fB\et\fRJune 15.
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15 June\fB\et\fRJune 15.
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Thursday\fB\et\fREvery Thursday.
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June\fB\et\fREvery June 1st.
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15 *\fB\et\fR15th of every month.
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May Sun+2\fB\et\fRsecond Sunday in May (Muttertag)
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04/SunLast\fB\et\fRlast Sunday in April,
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\fB\et\fRsummer time in Europe
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Easter\fB\et\fREaster
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Ostern-2\fB\et\fRGood Friday (2 days before Easter)
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Paskha\fB\et\fROrthodox Easter
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.Ed
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.Sh FILES
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.Bl -tag -width calendar.christian -compact
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.It Pa calendar
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file in current directory
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.It Pa ~/.calendar
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.Pa calendar
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HOME directory.
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.Nm
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does a chdir into this directory if it exists.
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.It Pa ~/.calendar/calendar
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calendar file to use if no calendar file exists in the current directory.
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.It Pa ~/.calendar/nomail
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do not send mail if this file exists.
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.El
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.Pp
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The following default calendar files are provided:
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.Pp
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.Bl -tag -width calendar.christian -compact
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.It Pa calendar.birthday
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Births and deaths of famous (and not-so-famous) people.
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.It Pa calendar.christian
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Christian holidays.
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This calendar should be updated yearly by the local system administrator
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so that roving holidays are set correctly for the current year.
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.It Pa calendar.computer
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Days of special significance to computer people.
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.It Pa calendar.history
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Everything else, mostly U.S. historical events.
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.It Pa calendar.holiday
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Other holidays, including the not-well-known, obscure, and
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.Em really
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obscure.
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.It Pa calendar.judaic
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Jewish holidays.
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This calendar should be updated yearly by the local system administrator
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so that roving holidays are set correctly for the current year.
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.It Pa calendar.music
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Musical events, births, and deaths.
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Strongly oriented toward rock 'n' roll.
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.It Pa calendar.usholiday
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U.S. holidays.
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This calendar should be updated yearly by the local system administrator
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so that roving holidays are set correctly for the current year.
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.It Pa calendar.german
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German calendar.
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.It Pa calendar.russian
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Russian calendar.
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.El
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.Sh SEE ALSO
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.Xr at 1 ,
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.Xr cpp 1 ,
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.Xr mail 1 ,
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.Xr cron 8
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.Sh COMPATIBILITY
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The
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.Nm
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program previously selected lines which had the correct date anywhere
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in the line.
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This is no longer true, the date is only recognized when it occurs
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at the beginning of a line.
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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 v7 .
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.Sh BUGS
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.Nm Calendar
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doesn't handle Jewish holidays and moon phases.
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