Linux: cal – display a calendar
cal
Display a calendar
Syntax
cal [-mjy] [[month] year]
Options:
-m Display monday as the first day of the week.
-j Display julian dates (days one-based, numbered from January 1).
-y Display a calendar for the current year.
A single parameter specifies the 4 digit year (1 - 9999) to be displayed.
Two parameters denote the Month (1 - 12) and Year (1 - 9999).
If arguments are not specified, the current month is displayed.
A year starts on 01 Jan.
