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DESCRIPTION

The following options are available:

-A num

Print lines from today and the next num days (forward, future).

-a

Process the ``calendar'' files of all users and mail the results to them. This requires super-user privileges.

-B num

Print lines from today and the previous num days (backward, past).

-F friday

Specify which day of the week is ``Friday'' (the day before the weekend begins). Default is 5.

-f calendarfile

Use calendarfile as the default calendar file.

-t dd[.mm[.year]]

For test purposes only: set date directly to argument values.

-W num

Print lines from today and the next num days (forward, future). Ignore weekends when calculating the number of days.

To handle calendars in your national code table you can specify “LANG=<locale_name>” in the calendar file as early as possible. To handle national Easter names in the calendars “Easter=<national_name>” (for Catholic Easter) or “Paskha=<national_name>” (for Orthodox Easter) can be used.

Other lines should begin with a month and day. They may be entered in almost any format, either numeric or as character strings. If the proper locale is set, national month and weekday names can be used. 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'', is Easter for this year, and may be followed by a positive or negative integer.

``Paskha'', is Orthodox Easter for this year, and may be followed by a positive or negative integer.

Weekdays may be followed by ``-4'' ... ``+5'' (aliases for 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.

Day descriptions start after the first <tab> character in the line; if the line does not contain a <tab> character, it is not displayed. If the first character in the line is a <tab> character, it is treated as a continuation of the previous line.

The ``calendar'' file is preprocessed by cpp(1), allowing the inclusion of shared files such as lists of company holidays or meetings. If the shared file is not referenced by a full pathname, cpp(1) searches in the current (or home) directory first, and then in the directory /usr/share/calendar. Empty lines and lines protected by the C commenting syntax (/* ... */) are ignored.

Some possible calendar entries (<tab> characters highlighted by \t sequence)

LANG=C
Easter=Ostern

#include <calendar.usholiday>
#include <calendar.birthday>

6/15\tJune 15 (if ambiguous, will default to month/day).
Jun. 15\tJune 15.
15 June\tJune 15.
Thursday\tEvery Thursday.
June\tEvery June 1st.
15 *\t15th of every month.

May Sun+2\tsecond Sunday in May (Muttertag)
04/SunLast\tlast Sunday in April,
\tsummer time in Europe
Easter\tEaster
Ostern-2\tGood Friday (2 days before Easter)
Paskha\tOrthodox Easter