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Expressions régulières,
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ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)


CentOS 2.1AS



CAL(1) BSD General Commands Manual CAL(1)


cal — displays a calendar


cal [−mjy13] [[monthyear]


Cal 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: ’’cal 89’’ will not 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 cal command appeared in Version 6 AT&T UNIX.

BSD June 6, 1993 BSD