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     cal, ncal - displays a calendar and the date of Easter


     cal [-hjy] [[month] year]
     cal [-hj] -m month [year]
     ncal [-hjJpwy3MS] [-s country_code] [[month] year]
     ncal [-hJeo] [year]


     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
     terminal.  If arguments are not specified, the current month is

     The options are as follows:

     -3      Print the previous month, the current month, and the next month
             all on one row.

     -h      Turns off highlighting of today.

     -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.  If month is specified as a decimal
             number, it may be followed by the letter ‘f’ or ‘p’ to indicate
             the following or preceding month of that number, respectively.

     -o      Display date of Orthodox Easter (Greek and Russian Orthodox

     -p      Print the country codes and switching days from Julian to
             Gregorian Calendar as they are assumed by ncal.  The country code
             as determined from the local environment is marked with an

     -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 specified year.

     -M      Weeks start on Monday.

     -S      Weeks start on Sunday.

     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 and year; the month is either a
     number between 1 and 12, or a full or abbreviated name as specified by
     the current locale.  Month and year default to those of the current
     system clock and time zone (so “cal -m 8” will display a calendar for the
     month of August in the current year).

     A year starts on January 1.


     calendar(3), strftime(3)


     A cal command appeared in Version 5 AT&T UNIX.  The ncal command appeared
     in FreeBSD 2.2.6.  The output of the cal command is supposed to be bit
     for bit compatible to the original Unix cal command, because its output
     is processed by other programs like CGI scripts, that should not be
     broken. Therefore it will always output 8 lines, even if only 7 contain
     data. This extra blank line also appears with the original cal command,
     at least on solaris 8


     The ncal command and manual were written by Wolfgang Helbig


     The assignment of Julian–Gregorian switching dates to country codes is
     historically naive for many countries.