Lessons 1-5 are in interactive shell usage through some small commands. If you have ideas for what should be added, feel free to let me/whoever is working on it know.
I'm not sure how to do lessson 6 at the moment. Scripting is really cool, but generally considered an "advanced topic."
Please try to keep lesson modules under 5 minutes (though it may be difficult)
Please make all instruction files markdown-compliant. If you need a reference, use the CommonMark tester
Remember that all files are intended to be opened in the terminal. Use standard terminal file practices: keep line widths to 80 characters, and don't use fancy UTF characters.
Please spell-check your files. In the spirit of the command line, both spell
and aspell are excellent CLI tools for this task.