4.3BSD-Reno/share/man/cat1/cal.0

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CAL(1)			    UNIX Reference Manual			CAL(1)

NNAAMMEE
     ccaall - displays a calendar

SSYYNNOOPPSSIISS
     ccaall [--jjyy] [_m_o_n_t_h [_y_e_a_r]]

DDEESSCCRRIIPPTTIIOONN
     CCaall displays a simple calendar.  If arguments are not specified, the
     current month is displayed.  The options are as follows:

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

     --yy    Display a calendar for the current year.

     A single parameter specifies the year (1 - 9999) to be displayed; note
     the year must be fully specified: ``cal 89'' will _n_o_t display a calendar
     for 1989.	Two parameters denote the month (1 - 12) and year.  If no
     parameters are specified, the current month's calendar is displayed.

     A year starts on Jan 1.

     The Gregorian Reformation is assumed to have occurred in 1972 on the 3rd
     of September.  By this time, most countries had recognized the reforma-
     tion (although a few did not recognize it until the early 1900's.) Ten
     days following that date were eliminated by the reformation, so the
     calendar for that month is a bit unusual.

HHIISSTTOORRYY
     A ccaall command appeared in Version 6 AT&T UNIX.  The ccaall command this man
     page describes is derived from code contributed by Kim Letkeman.