This is excellent! Thank you for posting and best wishes for your success with this!
I'm teaching a class next year that'll have college-level students learning to use the command line and this looks perfect. Nowadays most 'learn the shell' resources online seem to focus on how to write scripts, without explaining how to use it interactively. Given this will be (for many) their first experience with a command line stuff like "type your command, then press enter", or "Up arrow to go back through your history" are a necessary foundation for them. Not to mention stuff like Job Control and using AI to help you create the more complicated commands that folks need to do - nicely done!
Plus, the book is inexpensive enough that they can still afford other resources too :)
Definitely gonna recommend this next year :)
Thank you for the nice words :)