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displays
a simple calendar. If arguments are not specified, the current month is
displayed. The options are as follows: Display single month output (use
if cal was built with -3 as default to get older traditional output) Display
prev/current/next month output (use if cal was built with traditional -1
as default to get newer improved output) Display Monday as the first day
of the week. (The default is Sunday.) Display Julian dates (days one-based,
numbered from January 1). 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: will 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 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 reformation, so the calendar for that month is a bit unusual.
A
command appeared in Version 6 AT&T UNIX.
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