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b20a21a6c1
-W is like -A (number of days in the future to consider, but also specifies that we don't want special treatment at weekends. -F changes our notion of "Friday" (the day before the weekend). Arguably, calendar(1) is broken to have special treatment of weekends by default, but this method maintains POLA.
248 lines
7.6 KiB
Groff
248 lines
7.6 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 October 1, 2001
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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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The
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.Nm
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utility 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 the day before a weekend (normally Friday), events for the next
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three days 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
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Specify which day of the week is ``Friday'' (the day before the
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weekend begins).
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.It Fl W 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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Ignore weekends when calculating the number of days.
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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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A chdir is done 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.freebsd
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Birthdays of
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.Fx
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committers.
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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.french
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French calendar.
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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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The
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.Nm
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utility doesn't handle Jewish holidays and moon phases.
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