|CALENDAR(1)||General Commands Manual||CALENDAR(1)|
calendar utility checks the current
directory or the directory specified by the
CALENDAR_DIR environment variable for a file named
calendar and displays lines that begin with either
today's date or tomorrow's. On Fridays, events on Friday through Monday are
The options are as follows:
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.
The “CALENDAR” variable can be used to specify the style. Only ‘Julian’ and ‘Gregorian’ styles are currently supported. Use “CALENDAR=” to return to the default (Gregorian).
To enforce special date calculation mode for Cyrillic calendars you should specify “LANG=<local_name>” and “BODUN=<bodun_prefix>” where <local_name> can be ru_RU.UTF-8, uk_UA.UTF-8 or by_BY.UTF-8.
Other lines should begin with a month and day. They may be entered
in almost any format, either numeric or as character strings. If proper
locale is set, national months and weekdays 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” (may be followed by a positive or
negative integer) is Easter for this year. “Paskha” (may be
followed by a 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
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 isn't printed out. If the first character in the line is a <tab> character, it is treated as the continuation of the previous description.
The calendar file is preprocessed by
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,
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
Some possible calendar entries (a \t sequence denotes a <tab> character):
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
calendarchanges into, if it exists).
calendarwill not send mail if this file exists.
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
calendar command appeared in
Version 7 AT&T UNIX.
calendar doesn't handle all Jewish
holidays or moon phases.
|June 3, 2018||OpenBSD-6.4|