I’m not familiar with the “Unix Fundamentals” class (got a link?) but when I have interns I make the “missing semester”[1] course part of their onboarding. I find it’s a nice balance of pragmatism and the classroom structure they are already familiar with.

I will also note that I think skills like this end up being way more valuable to me as a mentor than hard CS knowledge.

[1] https://missing.csail.mit.edu/