Learning Resources

For exploring Linux :

https://linuxjourney.com

https://lym.readthedocs.io/en/latest/

For learning git :

https://learngitbranching.js.org

https://egghead.io/courses/how-to-contribute-to-an-open-source-project-on-github

http://jlord.us/git-it/

For starting out with programming:

https://cs50.harvard.edu/x/2020

The Missing Semester of Your CS Education :

https://missing.csail.mit.edu/

Free self-taught education :

https://github.com/ossu/computer-science

For EVERYTHING:

Google (or DuckDuckGo :P) : Google is your friend