TIL about ncal (most Linux distros) or CAL (on MacOS). I have used cal for quite a while which is a convenient calendar tool in the terminal. However, I hit CAPS LOCK on accident and ran CAL instead of cal, to my surprise it output

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

(the normal cal output)

   November 2022
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