calendar - reminder service SYNOPSIS
Calendar checks the current directory 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 displayed. If there is no configuration file in the current directory, /etc/calendar/default is used (if present).
dd[.mm[[.year?] For test purposes only: set date directly to argument values.
Causes the program to ``look ahead'' a given number of days (default one) from the specified date and display their entries as well.
Causes the program to add the specified number of days to the ``look ahead'' number if and only if the day specified is a Friday. The default value is two, which causes calendar to print entries through the weekend on Fridays.
To handle calendars in your national code table you can specify ``LANG=
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
The ``calendar'' file is preprocessed by cpp(1), allowing the inclusion of shared files such as lists of company holi- days 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 /etc/calendar/, then in /etc/calendar, then in /usr/share/calendar/ and finally in /usr/share/calendar. Empty lines and lines protected by the C commenting syntax (/ ... /) are ignored.
Some possible calendar entries ( t__ sequence)
6/15tJune 15 (if ambiguous, will default to month/day). Jun. 15tJune 15. 15 JunetJune 15. ThursdaytEvery Thursday. JunetEvery June 1st. 15 t15th of every month.
file in current directory
/calendar file in $HOME /.calendar calendar HOME directory. calendar does a chdir into this directory if it exists. /.calendar/calendar calendar file to use if no calendar file exists in the current directory. /.calendar/nomail do not send mail if this file exists.
The following default calendar files are provided:
calendar.birthday Births and deaths of famous (and not-so-famous) people. 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. calendar.computer Days of special significance to computer people. calendar.freebsd Birthdays of FreeBSD committers. calendar.history Everything else, mostly U.S. historical events. calendar.holiday Other holidays, including the not-well-known, obscure, and really obscure. calendar.judaic Jewish holidays. This calendar should be updated yearly by the local system admin- istrator so that roving holidays are set correctly for the current year. calendar.discordian Discordian holidays. calendar.music Musical events, births, and deaths. Strongly oriented toward rock 'n' roll. calendar.usholiday U.S. holidays. This calendar should be updated yearly by the local system admin- istrator so that roving holidays are set correctly for the current year. calendar.german German calendar. calendar.russian Russian calendar. calendar.croatian Croatian calendar. calendar.hindu Major Hindu holidays. This calendar should be updated yearly by the local system administrator so that roving holi- days are set correctly for the current year. default The system-wide default, which #includes all the previous calendars.
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.
Having a directory per year is a Debian-specific improvement over the standard BSD calendar.
Older calendar releases distributed with Debian supported the -t option which has been superseded by the -A and -B options and the /.calendar file which has been superseded by the /.calendar directory. HISTORY