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@(#)calendar.1 8.1 (Berkeley) 6/29/93
.Dd June 29, 1993 .Dt CALENDAR 1 .Os .Sh NAME .Nm calendar .Nd reminder service .Sh SYNOPSIS .Nm calendar .Op Fl a .Op Fl A Ar num .Op Fl B Ar num .Op Fl f Ar calendarfile .Sh DESCRIPTION .Nm Calendar checks the current directory for a file named
a calendar and displays lines that begin with either today's date or tomorrow's. On Fridays, events on Friday through Monday are displayed.
p The following options are available: l -tag -width Ds t Fl a Process the ``calendar'' files of all users and mail the results to them. This requires super-user privileges. t Fl A Ar num print lines from today and next .Ar num days (forward, future) t Fl B Ar num print lines from today and previous .Ar num days (backward, past) t Fl f Pa calendarfile use
a calendarfile as default calendar file. .El
p To handle calendars in your national code table you can specify .Dq LANG=<locale_name> in the calendar file as early as possible. To handle national Easter names .Dq Easter=<national_name> (for Catholic Easter) or .Dq Paskha=<national_name> (for Orthodox Easter) can be used.
p Other lines should begin with a month and day. They may be entered in almost any format, either numeric or as character strings. A single asterisk (``*'') matches every month. A day without a month matches that day of every week. A month without a day matches the first of that month. Two numbers default to the month followed by the day. Lines with leading tabs default to the last entered date, allowing multiple line specifications for a single date. ``Easter'', may be followed by an positive or negative integer, is Easter for this year. ``Paskha'', may be followed by an positive or negative integer, is Orthodox Easter for this year. Weekdays may be followed by ``-4'' ... ``+5'' (aliases last, first, second, third, fourth) for moving events like ``the last Monday in April'' By convention, dates followed by an asterisk are not fixed, i.e., change from year to year.
p The ``calendar'' file is preprocessed by .Xr cpp 1 , allowing the inclusion of shared files such as company holidays or meetings. If the shared file is not referenced by a full pathname, .Xr cpp 1 searches in the current (or home) directory first, and then in the directory
a /usr/share/calendar . Empty lines and lines protected by the C commenting syntax
q Li /* ... */ are ignored.
p Some possible calendar entries: d -unfilled -offset indent LANG=C Easter=Ostern #include <calendar.usholiday> #include <calendar.birthday> 6/15 ... June 15 (if ambiguous, will default to month/day). Jun. 15 ... June 15. 15 June ... June 15. Thursday ... Every Thursday. June ... Every June 1st. 15 * ... 15th of every month. May Sun+2 ... second Sunday in May (Muttertag) 04/SunLast ... last Sunday in April, summer time in Europe Easter ... Easter Easter-2 ... Good Friday (2 days before Easter) Paskha ... Orthodox Easter .Ed .Sh FILES
p l -tag -width calendar.christian -compact t Pa calendar file in current directory t Pa ~/.calendar
a calendar HOME directory. .Nm calendar does a chdir into this directory if it exists. t Pa ~/.calendar/calendar calendar file to use if no calendar file exists in the current directory. t Pa ~/.calendar/nomail do not send mail if this file exists. .El The following default calendar files are provided:
p l -tag -width calendar.christian -compact t Pa calendar.birthday Births and deaths of famous (and not-so-famous) people. t Pa calendar.christian Christian holidays. This calendar should be updated yearly by the local system administrator so that roving holidays are set correctly for the current year. t Pa calendar.computer Days of special significance to computer people. t Pa calendar.history Everything else, mostly U. S. historical events. t Pa calendar.holiday Other holidays, including the not-well-known, obscure, and .Em really obscure. t Pa calendar.judaic Jewish holidays. This calendar should be updated yearly by the local system administrator so that roving holidays are set correctly for the current year. t Pa calendar.music Musical events, births, and deaths. Strongly oriented toward rock 'n' roll. t Pa calendar.usholiday U.S. holidays. This calendar should be updated yearly by the local system administrator so that roving holidays are set correctly for the current year. t Pa calendar.german German calendar. .El .Sh SEE ALSO .Xr at 1 , .Xr cpp 1 , .Xr cron 8 .Xr mail 1 , .Sh COMPATIBILITY The .Nm calendar program previously selected lines which had the correct date anywhere in the line. This is no longer true, the date is only recognized when it occurs at the beginning of a line. .Sh HISTORY A .Nm command appeared in Version 7 AT&T UNIX. .Sh BUGS .Nm Calendar doesn't handle Jewish holidays and moon phases.