schplurtz I see you've already updated the instructions! I had actually forgotten one other part that didn't "just work", and maybe you know what it should be without having to do a bunch of reading:
sudo mv dokuwiki-\d\d\d\d-\d\d-\d\d /var/www/html/dokuwiki
fails for now because the current release of dokuwiki is 2022-07-31a
. It looks like that's some sort of pattern-matching expression that's looking for all-digits, and I suspect the letter on the end of the current release number is breaking that.
Doing it manually was easy enough to figure out, but if we're talking about making the instructions work, that'd be a good one to take care of, too.