cal

Display a calendar with the current day highlighted. More information: https://man.openbsd.org/cal.

• Display a calendar for the current month:

cal

• Display a calendar for a specific year:

cal {{year}}

• Display a calendar for a specific month and year:

cal {{month}} {{year}}

• Display a calendar for the current [y]ear:

cal -y

• Display [j]ulian days (starting from one, numbered from January 1):

cal -j

• Use [m]onday as week start instead of Sunday:

cal -m

• Number [w]eek numbers (incompatible with -j):

cal -w