1 .\" Copyright (c) 1989, 1990, 1993
2 .\" The Regents of the University of California. All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
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 .\" 3. All advertising materials mentioning features or use of this software
13 .\" must display the following acknowledgement:
14 .\" This product includes software developed by the University of
15 .\" California, Berkeley and its contributors.
16 .\" 4. Neither the name of the University nor the names of its contributors
17 .\" may be used to endorse or promote products derived from this software
18 .\" without specific prior written permission.
20 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 .\" @(#)calendar.1 8.1 (Berkeley) 6/29/93
46 .Op Fl f Ar calendarfile
49 .Op . Ar mm Op . Ar year
54 checks the current directory for a file named
56 and displays lines that begin with either today's date
58 On Fridays, events on Friday through Monday are displayed.
60 The following options are available:
63 Process the ``calendar'' files of all users and mail the results
65 This requires super-user privileges.
67 Print lines from today and the next
69 days (forward, future).
71 Print lines from today and the previous
73 days (backward, past).
74 .It Fl f Pa calendarfile
77 as the default calendar file.
81 .Op . Ar mm Op . Ar year
84 For test purposes only: set date directly to argument values.
87 To handle calendars in your national code table you can specify
88 .Dq LANG=<locale_name>
89 in the calendar file as early as possible.
90 To handle national Easter
91 names in the calendars
92 .Dq Easter=<national_name>
93 (for Catholic Easter) or
94 .Dq Paskha=<national_name>
95 (for Orthodox Easter) can be used.
97 Other lines should begin with a month and day.
98 They may be entered in almost any format, either numeric or as character
100 If the proper locale is set, national month and weekday
102 A single asterisk (``*'') matches every month.
103 A day without a month matches that day of every week.
104 A month without a day matches the first of that month.
105 Two numbers default to the month followed by the day.
106 Lines with leading tabs default to the last entered date, allowing
107 multiple line specifications for a single date.
109 ``Easter'', is Easter for this year, and may be followed by a positive
112 ``Paskha'', is Orthodox Easter for this year, and may be followed by a
113 positive or negative integer.
115 Weekdays may be followed by ``-4'' ... ``+5'' (aliases for
116 last, first, second, third, fourth) for moving events like
117 ``the last Monday in April''
119 By convention, dates followed by an asterisk are not fixed, i.e., change
122 Day descriptions start after the first <tab> character in the line;
123 if the line does not contain a <tab> character, it is not displayed.
124 If the first character in the line is a <tab> character, it is treated as
125 a continuation of the previous line.
127 The ``calendar'' file is preprocessed by
129 allowing the inclusion of shared files such as company holidays or
131 If the shared file is not referenced by a full pathname,
133 searches in the current (or home) directory first, and then in the
135 .Pa /usr/share/calendar .
136 Empty lines and lines protected by the C commenting syntax
140 Some possible calendar entries (<tab> characters highlighted by
142 .Bd -unfilled -offset indent
146 #include <calendar.usholiday>
147 #include <calendar.birthday>
149 6/15\fB\et\fRJune 15 (if ambiguous, will default to month/day).
150 Jun. 15\fB\et\fRJune 15.
151 15 June\fB\et\fRJune 15.
152 Thursday\fB\et\fREvery Thursday.
153 June\fB\et\fREvery June 1st.
154 15 *\fB\et\fR15th of every month.
156 May Sun+2\fB\et\fRsecond Sunday in May (Muttertag)
157 04/SunLast\fB\et\fRlast Sunday in April,
158 \fB\et\fRsummer time in Europe
159 Easter\fB\et\fREaster
160 Ostern-2\fB\et\fRGood Friday (2 days before Easter)
161 Paskha\fB\et\fROrthodox Easter
166 .Bl -tag -width calendar.christian -compact
168 file in current directory
173 does a chdir into this directory if it exists.
174 .It Pa ~/.calendar/calendar
175 calendar file to use if no calendar file exists in the current directory.
176 .It Pa ~/.calendar/nomail
177 do not send mail if this file exists.
180 The following default calendar files are provided:
182 .Bl -tag -width calendar.christian -compact
183 .It Pa calendar.birthday
184 Births and deaths of famous (and not-so-famous) people.
185 .It Pa calendar.christian
187 This calendar should be updated yearly by the local system administrator
188 so that roving holidays are set correctly for the current year.
189 .It Pa calendar.computer
190 Days of special significance to computer people.
191 .It Pa calendar.history
192 Everything else, mostly U.S. historical events.
193 .It Pa calendar.holiday
194 Other holidays, including the not-well-known, obscure, and
197 .It Pa calendar.judaic
199 This calendar should be updated yearly by the local system administrator
200 so that roving holidays are set correctly for the current year.
201 .It Pa calendar.music
202 Musical events, births, and deaths.
203 Strongly oriented toward rock 'n' roll.
204 .It Pa calendar.usholiday
206 This calendar should be updated yearly by the local system administrator
207 so that roving holidays are set correctly for the current year.
208 .It Pa calendar.german
210 .It Pa calendar.russian
221 program previously selected lines which had the correct date anywhere
223 This is no longer true, the date is only recognized when it occurs
224 at the beginning of a line.
232 doesn't handle Jewish holidays and moon phases.