term% cat index.txt CAL(1) General Commands Manual CAL(1)
NAME
cal - print calendar
SYNOPSIS
cal [ month ] [ year ]
DESCRIPTION
Cal prints a calendar. Month is either a number from 1 to 12, a lower
case month name, or a lower case three-letter prefix of a month name.
Year can be between 1 and 9999. If either month or year is omitted,
the current month or year is used. If only one argument is given, and
it is a number larger than 12, a calendar for all twelve months of the
given year is produced; otherwise a calendar for just one month is
printed. The calendar produced is that for England and her colonies.
Try
cal sep 1752
SOURCE
/sys/src/cmd/cal.c
BUGS
The year is always considered to start in January even though this is
historically naive.
Beware that refers to the early Christian era, not the 20th century.
CAL(1)