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OpenSolaris 2009.06 - man page for calendar (opensolaris section 1)

calendar(1)				  User Commands 			      calendar(1)

       calendar - reminder service

       calendar [-]

       The  calendar utility consults the file calendar in the current directory and writes lines
       that contain today's or tomorrow's date anywhere in the line to standard output. Most rea-
       sonable	month-day  dates  such as Aug. 24, august 24, 8/24, and so forth, are recognized,
       but not 24 August or 24/8. On Fridays and weekends "tomorrow" extends through Monday. cal-
       endar can be invoked regularly by using the crontab(1) or at(1) commands.

       When  the  optional  argument - is present, calendar does its job for every user who has a
       file calendar in his or her login  directory  and  sends  them  any  positive  results  by
       mail(1).  Normally  this  is  done  daily  by  facilities  in  the  UNIX  operating system

       If the environment variable DATEMSK is set, calendar will use its value as the  full  path
       name of a template file containing format strings. The strings consist of conversion spec-
       ifications and text characters and are used to provide a richer set of allowable date for-
       mats  in  different  languages by appropriate settings of the environment variable LANG or
       LC_TIME; see environ(5). Seestrftime(3C) for the list of allowable  conversion  specifica-

       Example 1 Possible contents of a template

       The following example shows the possible contents of a template:

	 %B %eth of the year %Y

       %B represents the full month name, %e the day of month and %Y the year (4 digits).

       If DATEMSK is set to this template, the following calendar file would be valid:

	 March 7th of the year 1989 <Reminder>

       See  environ(5)	for  descriptions  of the following environment variables that affect the
       execution of calendar: LC_CTYPE, LC_TIME, LC_MESSAGES, NLSPATH, and TZ.

       0      Successful completion.

       >0     An error occurred.

       /etc/passwd	    system password file

       /tmp/cal*	    temporary files used by calendar

       /usr/lib/calprog     program used to determine dates for today and tomorrow

       See attributes(5) for descriptions of the following attributes:

       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       |Availability		     |SUNWesu			   |

       at(1), crontab(1), mail(1), cron(1M), ypbind(1M), strftime(3C), attributes(5), environ(5)

       Appropriate lines beginning with white space will not be printed.

       Your calendar must be public information for you to get reminder service.

       calendar's extended idea of ``tomorrow'' does not account for holidays.

       The - argument works only on calendar files that are local to  the  machine;  calendar  is
       intended not to work on calendar files that are mounted remotely with NFS. Thus, `calendar
       -' should be run only on diskful machines where home directories exist;	running it  on	a
       diskless client has no effect.

       calendar is no longer in the default root crontab. Because of the network burden `calendar
       -' can induce, it is inadvisable  in  an  environment  running  ypbind(1M)  with  a  large
       passwd.byname  map.  If, however, the usefulness of calendar outweighs the network impact,
       the super-user may run `crontab -e' to edit the root crontab. Otherwise, individual  users
       may wish to use `crontab -e' to edit their own crontabs to have cron invoke calendar with-
       out the - argument, piping output to mail addressed to themselves.

SunOS 5.11				    1 Feb 1995				      calendar(1)

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