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CAL(1)					  User Commands 				   CAL(1)

NAME
       cal - display a calendar

SYNOPSIS
       cal [options] [[[day] month] year]

DESCRIPTION
       cal  displays a simple calendar.  If no arguments are specified, the current month is dis-
       played.

OPTIONS
       -1, --one
	      Display single month output.  (This is the default.)

       -3, --three
	      Display prev/current/next month output.

       -s, --sunday
	      Display Sunday as the first day of the week.

       -m, --monday
	      Display Monday as the first day of the week.

       -j, --julian
	      Display Julian dates (days one-based, numbered from January 1).

       -y, --year
	      Display a calendar for the current year.

       -V, --version
	      Display version information and exit.

       -h, --help
	      Display help screen and exit.

PARAMETERS
       A single parameter specifies the year (1 - 9999) to be displayed; note the  year  must  be
       fully specified: cal 89 will not display a calendar for 1989.

       Two parameters denote the month (1 - 12) and year.

       Three parameters denote the day (1-31), month and year, and the day will be highlighted if
       the calendar is displayed on a terminal. If  no	parameters  are  specified,  the  current
       month's calendar is displayed.

       A year starts on Jan 1. The first day of the week is determined by the locale.

       The  Gregorian Reformation is assumed to have occurred in 1752 on the 3rd of September. By
       this time, most countries had recognized the reformation (although a few did not recognize
       it  until  the early 1900's). Ten days following that date were eliminated by the reforma-
       tion, so the calendar for that month is a bit unusual.

HISTORY
       A cal command appeared in Version 6 AT&T UNIX.

AVAILABILITY
       The cal command is part of the util-linux package and  is  available  from  ftp://ftp.ker-
       nel.org/pub/linux/utils/util-linux/.

util-linux				    June 2011					   CAL(1)
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