cal, ncal in Mac OS X

cal and ncal are two commands in Mac OS X that display a calendar in the terminal. cal displays a simple calendar for the current month, while ncal displays a more complex calendar with options to display different months and years.

Here are some examples:

To display the calendar for the current month, simply enter:

cal

This will display a simple calendar like this:

   May 2023
Su Mo Tu We Th Fr Sa
    1  2  3  4  5  6
 7  8  9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31

To display the calendar for a specific month and year, use the -m and -y options with ncal. For example, to display the calendar for January 2022, enter:

ncal -m 1 -y 2022

This will display a calendar like this:

    January 2022
Mo     3 10 17 24 31
Tu     4 11 18 25
We     5 12 19 26
Th     6 13 20 27
Fr     7 14 21 28
Sa     1  8 15 22 29
Su     2  9 16 23 30