CAL(1) BSD General Commands Manual CAL(1)NAME
cal, ncal — displays a calendar and the date of easter
SYNOPSIScal [-jy] [-m month] [[month] year]
ncal [-jJpwy] [-m month] [-s country_code] [[month] year]
ncal [-Jeo] [year]
DESCRIPTION
The cal utility displays a simple calendar in traditional format and ncal
offers an alternative layout, more options and the date of easter. The
new format is a little cramped but it makes a year fit on a 25x80 termi‐
nal. If arguments are not specified, the current month is displayed.
The options are as follows:
-J Display Julian Calendar, if combined with the -e option, display
date of easter according to the Julian Calendar.
-e Display date of easter (for western churches).
-j Display Julian days (days one-based, numbered from January 1).
-m month
Display the specified month.
-o Display date of orthodox easter (Greek and Russian Orthodox
Churches).
-p Print the country codes and switching days from Julian to Grego‐
rian Calendar as they are assumed by ncal. The country code as
determined from the local environment is marked with an asterisk.
-s country_code
Assume the switch from Julian to Gregorian Calendar at the date
associated with the country_code. If not specified, ncal tries
to guess the switch date from the local environment or falls back
to September 2, 1752. This was when Great Britain and her
colonies switched to the Gregorian Calendar.
-w Print the number of the week below each week column.
-y 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. Two parameters denote the month and
year; the month is either a number between 1 and 12, or a full or abbre‐
viated name as specified by the current locale. A single dot, ‘.’, for
the year parameter refers to the current year.
A year starts on Jan 1.
DIAGNOSTICS
The cal utility returns 0 on success or >0 if an error occurred.
SEE ALSOcalendar(3), strftime(3)STANDARDS
The cal utility conforms to IEEE Std 1003.1-2004 (“POSIX.1”) and is ahead
of the standard with locale-specific Gregorian adoption details.
HISTORY
A cal command appeared in Version 5 AT&T UNIX. The ncal command appeared
in FreeBSD 2.2.6.
AUTHORS
The ncal command and manual were written by Wolfgang Helbig
⟨helbig@FreeBSD.org⟩.
BUGS
The assignment of Julian - Gregorian switching dates to country codes is
historically naive for many countries.
BSD March 12, 2009 BSD