Dear SCjoe,
Yes, it´s a little bit confusing having DOT-commands with the same name but different behavior or for different hardware.
Because of lack of time and easyness I´ll keep all the commands on one page. Only mentioning special Requirements like hardware in the Comment Column of the list.
But I will add all commands that become known to me, so even this excellent looking .CAL (or is it called .DATE ?) you mentioned: (Have not further tested this one yet - this is just a "screenshot" from the Forum-Thread you linked).
cygnus@cygnus ~ $ cal
říjen 2019
Po Út St Čt Pá So Ne
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
It´s really a great Thread you´ve linked to. I like it!