Re: "And bluetooth with Win10 is an iffy affair"
Dr. S, might want to pass along this link:
The Coherent Lexicon is still one of the best learning tools ever written for un*x neophytes, even if it is in PDF format. The ANSI C Lexicon is pretty good, too. I'll leave it there, the website speaks for itself. So does Steve's resume ...
Another good book pass on to the youngster is O'Reilly's "UNIX Power Tools". All the above are worth searching used book stores for. They are not really tutorials, per se, but can be used as such if the student is actually interested in learning how these infuriating contraptions can be used with minimal headaches.