These are paid, and not exactly a course but the Destroy All Software screencasts are great, and cover a lot of topics like shell scripting, VIM / EMACS, testin

These are paid, and not exactly a course but the Destroy All Software screencasts are great, and cover a lot of topics like shell scripting, VIM / EMACS, testing, refactoring etc. https://www.destroyallsoftware.com/screencasts https://www.destroyallsoftware.com/screencasts They're by Gary Bernhardt of Wat fame, which is also worth a watch for its presentation style and amusing content: https://www.destroyallsoftware.com/talks/wat https://www.destroyallsoftware.com/talks/wat