reminder service

calendar [-abw] [-A num] [-B num] [-l num] [-e num] [-f calendarfile] [-t [[[cc]yy]mm]dd]

Displays lines from calendar that begin with either today's date or tomorrow's.
Checks the current directory or the directory specified by $CALENDAR_DIR for the file. On Fridays, events on Friday through Monday are displayed.

-A num
-l num
output lines from today and next num days (forward, future). Defaults to one.
-B num output lines from today and previous num days (backward, past).
-e num output lines from today and next num days, only if today is Friday (forward, future).
Defaults to two, which causes calendar to print entries through the weekend on Fridays.
-f calendarfile Use calendarfile
-t [[[cc]yy]mm]dd Act as if it is yymmdd.
-w output day of the week in front of each event.
-a Process calendars of all users and mail the results to them. requires superuser privileges.
-b Enforce special date calculation mode for Cyrillic calendars.
To handle calendars in your national code table 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)

Specifying LANG=utf-8 indicates that the dates will be read using the C locale, and the descriptions will be encoded in UTF-8. This is used for the distributed calendar files. The "CALENDAR" variable can be used to specify the style. Only 'Julian' and 'Gregorian' styles are supported. Use "CALENDAR=" to return to the default (Gregorian).

To enforce special date calculation mode for Cyrillic calendars you should specify "LANG=" and "BODUN=" where can be ru_RU.UTF-8, uk_UA.UTF-8 or by_BY.UTF-8.

the locale is reset to the user's default for each new file that is read. This is so that locales from one file do not accidentally carry over into another file.

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 with- out 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 April".

By convention, dates followed by an asterisk ('*') are not fixed, i.e., change from year to year.

Day descriptions start after the first character in the line; if the line does not contain a character, it isn't printed out. If the first character in the line is a character, it is treated as the continuation of the previous descrip- tion.

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 direc- tory /etc/calendar, and finally in /usr/share/calendar. Empty lines and lines protected by the C commenting syntax (/* ... */) are ignored.

Some possible calendar entries (a \t sequence denotes a character):



           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
           Ostern-2\tGood Friday (2 days before Easter)
           Paskha\tOrthodox Easter


calendar File in current directory. ~/.calendar Directory in the user's home directory (which calendar changes into, if it exists). ~/.calendar/calendar File to use if no calendar file exists in the current directory. ~/.calendar/nomail calendar will not send mail if this file exists. calendar.all International and national calendar files. calendar.birthday Births and deaths of famous (and not-so-famous) people. calendar.canada Canadian holidays. calendar.christian Christian holidays (should be updated yearly by the local system administrator so that roving holidays are set correctly for the current year). Days of special significance to computer people. calendar.croatian Croatian calendar. calendar.discord Discordian calendar (all rites reversed). calendar.fictional Fantasy and fiction dates (mostly LOTR). calendar.french French calendar. calendar.german German calendar. calendar.history Miscellaneous history. Other holidays (including the not-well-known, obscure, and really obscure). calendar.judaic Jewish holidays (should be updated yearly by the local system administrator so that roving holidays are set correctly for the current year). Musical events, births, and deaths (strongly oriented toward rock n' roll). New Zealand calendar. calendar.openbsd OpenBSD related events. calendar.pagan Pagan holidays, celebrations and festivals. calendar.russian Russian calendar. Cosmic history. UK calendar. calendar.ushistory U.S. history. calendar.usholiday U.S. holidays. World wide calendar. SEE ALSO at(1), cal(1), cpp(1), mail(1), cron(8) STANDARDS The 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. COMPATIBILITY The calendar command will only display lines that use a tab> character to separate the date and description, or that begin with a tab.

-l and -e are Debian-specific enhancements. -el used to be called in Debian, but this option is now used differently by upstream. Also, the original calendar program did not accept 0 as an argument to the -A flag.

Using 'utf-8' as a locale name is a Debian-specific enhancement.

calendar doesn't handle all Jewish holidays or moon phases.