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CALENDAR(1)                  BSD Reference Manual                  CALENDAR(1)

NAME
     calendar - reminder service

SYNOPSIS
     calendar [-a]

DESCRIPTION
     Calendar checks the current directory for a file named calendar and dis-
     plays lines that begin with either today's date or tomorrow's.  On Fri-
     days, events on Friday through Monday are displayed.

     The following options are available:

     -a      Process the ``calendar'' files of all users and mail the results
             to them.  This requires super-user privileges.

     Lines should begin with a month and day.  They may be entered in almost
     any format, either numeric or as character strings.  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 specifica-
     tions for a single date.  By convention, dates followed by an asterisk
     are not fixed, i.e., change from year to year.

     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 ignored.

     Some possible calendar entries:

           #include  <calendar.usholiday>
           #include  <calendar.birthday>

           6/15      ... June 15 (if ambiguous, will default to month/day).
           Jun. 15        ... June 15.
           15 June        ... June 15.
           Thursday  ... Every Thursday.
           June      ... Every June 1st.
           15 *      ... 15th of every month.

FILES
     The following default calendar files are provided:

     calendar.birthday   Births and deaths of famous (and not-so-famous) peo-
                         ple.
     calendar.christian  Christian holidays.  This calendar should be updated
                         yearly by the local system administrator so that rov-
                         ing holidays are set correctly for the current year.
     calendar.computer   Days of special significance to computer people.
     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 rov-
                         ing holidays are set correctly for the current year.
     calendar.music      Musical  events,  births, and deaths.  Strongly  ori-
                         ented  toward  rock 'n' roll.
     calendar.usholiday  U.S. holidays.  This calendar should be updated year-
                         ly by the local system administrator so that roving
                         holidays are set correctly for the current year.

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

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 recog-
     nized when it occurs first on the line.

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

BUGS
     Calendar doesn't handle events that move around from year to year, i.e.,
     ``the last Monday in April''.

4.4BSD                           June 29, 1993                               2