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CALENDAR(1)		    General Commands Manual		   CALENDAR(1)

NAME
       calendar	-- reminder service

SYNOPSIS
       calendar	  [-a]	[-A  num]  [-B	num]  [-F  friday]  [-f	 calendarfile]
		[-t dd[.mm[.year]]] [-W	num] [-U UTC-offset] [-l longitude]

DESCRIPTION
       The calendar utility checks the current	directory  for	a  file	 named
       calendar	 and displays lines that begin with either today's date	or to-
       morrow's.  On the day before a weekend (normally	 Friday),  events  for
       the next	three days are displayed.

       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 re-
	       sults 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.

       -l longitude, -U	UTC-offset
	       Only  one  is needed: Perform lunar and solar calculations from
	       this longitude or from this UTC offset.	If neither  is	speci-
	       fied,  the calculations will be based on	the difference between
	       UTC time	and localtime.

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

FILE FORMAT
       To handle calendars  in	your  national	code  table  you  can  specify
       "LANG=<locale_name>" in the calendar file as early as possible.

       To  handle  the	local  name  of	 sequences,  you  can specify them as:
       "SEQUENCE=<first> <second> <third> <fourth> <fifth> <last>" in the cal-
       endar file as early as possible.

       The names of the	following special days are recognized:
       Easter		Catholic Easter.
       Paskha		Orthodox Easter.
       NewMoon		The lunar New Moon.
       FullMoon		The lunar Full Moon.
       MarEquinox	The solar equinox in March.
       JunSolstice	The solar solstice in June.
       SepEquinox	The solar equinox in March.
       DecSolstice	The solar solstice in December.
       ChineseNewYear	The first day of the Chinese year.
       These names may be reassigned to	their local names  via	an  assignment
       like "Easter=Pasen" in the calendar 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  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,	allow-
       ing multiple line specifications	for a single date.

       The names of the	recognized special days	may be followed	by a  positive
       or negative integer, like: "Easter+3" or	"Pashka-4".

       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 comment-
       ing syntax (/* ... */) are ignored.

       Some  possible calendar entries (<tab> characters highlighted by	\t se-
       quence)

	     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.
	     2010/4/15\t15 April 2010

	     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

FILES
       calendar		   file	in current directory
       ~/.calendar	   calendar HOME directory.  A chdir is	done 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   in
       /usr/share/calendars:

       calendar.all	     File which	includes all the default files.
       calendar.australia    Calendar of events	in Australia.
       calendar.birthday     Births and	deaths of famous  (and	not-so-famous)
			     people.
       calendar.christian    Christian	holidays.  This	calendar should	be up-
			     dated 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.croatian     Calendar of events	in Croatia.
       calendar.dutch	     Calendar of events	in the Netherlands.
       calendar.freebsd	     Birthdays of FreeBSD committers.
       calendar.french	     Calendar of events	in France.
       calendar.german	     Calendar of events	in Germany.
       calendar.history	     Everything	else, mostly U.S. historical events.
       calendar.holiday	     Other holidays, including the not-well-known, ob-
			     scure, and	really obscure.
       calendar.judaic	     Jewish  holidays.	 The entries for this calendar
			     have been obtained	from the  port	deskutils/heb-
			     cal.
       calendar.music	     Musical  events,  births,	and  deaths.  Strongly
			     oriented toward rock 'n' roll.
       calendar.newzealand   Calendar of events	in New Zealand.
       calendar.russian	     Russian calendar.
       calendar.southafrica  Calendar of events	in South Africa.
       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.
       calendar.world	     Includes all calendar files except	 for  national
			     files.

COMPATIBILITY
       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.

SEE ALSO
       at(1), cpp(1), mail(1), cron(8)

HISTORY
       A calendar command appeared in Version 7	AT&T UNIX.

NOTES
       Chinese	New Year is calculated at 120 degrees east of Greenwich, which
       roughly corresponds with	the east coast of China.  For people  west  of
       China, this might result	that the start of Chinese New Year and the day
       of the related new moon might differ.

       The  phases  of	the  moon  and the longitude of	the sun	are calculated
       against the local position which	corresponds with 30 degrees times  the
       time-difference towards Greenwich.

       The  new	 and full moons	are happening on the day indicated: They might
       happen in the time period in the	early night or in  the	late  evening.
       It doesn't indicate that	they are starting in the night on that date.

       Because	of  minor  differences between the output of the formulas used
       and other sources on the	Internet, Druids and Werewolves	should double-
       check the start and end time of solar and lunar events.

BUGS
       The calendar utility does not handle Jewish holidays.

       There is	no possibility to properly specify the local  position	needed
       for solar and lunar calculations.

FreeBSD	8.2			 June 13, 2002			   CALENDAR(1)

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