calendar -- reminder service
calendar [-a] [-A num] [-B num] [-f calendarfile] [-t dd[.mm[.year]]]
[-l days] [-w days]
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).
The following options are available:
-a Process the ``calendar'' files of all users and mail the results
to them. This requires super-user privileges.
-A num Print lines from today and the next num days (forward, future).
-B num Print lines from today and the previous num days (backward,
past).
-f calendarfile
Use calendarfile as the default calendar file.
-t dd[.mm[.year]]
For test purposes only: set date directly to argument values.
-l days
Causes the program to ``look ahead'' a given number of days
(default one) from the specified date and display their entries
as well.
-w days
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=<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
/etc/calendar/<yearnum>, then in /etc/calendar, then in
/usr/share/calendar/<yearnum> and finally in /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
calendar 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 administrator 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 administrator 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 holidays are set correctly for the current
year.
default The system-wide default, which #includes all the previous
calendars.
at(1), cpp(1), mail(1), cron(8)
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.
A calendar command appeared in Version 7 AT&T UNIX.
Calendar doesn't handle Jewish holidays and moon phases. The -A and -l
options do very similar things.
FreeBSD 5.2.1 October 1, 2001 FreeBSD 5.2.1 [ Back ] |
