Oh! Speaking of command line and the basics, this one from MIT is amazing. Covers all the basics.

The Missing Semester of Your CS Education - https://missing.csail.mit.edu/

Contents: Course overview + the shell, Shell Tools and Scripting Editors (Vim), Data Wrangling, Command-line Environment, Version Control (Git), Debugging and Profiling, Metaprogramming, Security and Cryptography

any chance you are going to make advanved level class as well? I covered basics a while ago, looking to work on efficiency

It was really nice. I can recommend!