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When I was finishing of my degree at Uni I actually spent a couple of months as an auxiliary teacher giving professional training in Unix, which included teaching people shell script.
Nowadays (granted, almost 3 decades later), I remember almost nothing of shell scripting, even though I've stayed on the Technical Career Track doing mostly Programming since.
So that joke is very much me irl.
Bash substitution is regex-level wizardry.
Slapping a $ before an environment variable name is "wizardry?"
Not quite that, but more the ${variable##.*} sort of thing.
Right, so that's just the string manipulation functions. I already posted a link to the bible for this following a different reply to the same comment to which you replied.
interns be interning
Meh. I had a bash job for 6 years. I couldn't forget it if I wanted to. I imagine most people don't use it enough for it to stick. You get good enough at it, and there's no need to reach for python.
It seems like it does stuff differently for the sake of it being different.
Incredibly true for me these days. But don't fret, shellcheck and tldp.org is all you need. And maybe that one stackoverflow answer about how to get the running script's directory