Thanks. My case is kinda weird one. I left my job after just 6 years in corporate world, due to various reasons. To cut a long story short, I went through depr

Thanks. My case is kinda weird one. I left my job after just 6 years in corporate world, due to various reasons. To cut a long story short, I went through depression, trying various things which didn't work out, etc. I conduct basic cli/scripting workshops at college, so I tried improving my materials - got active on stackoverflow, reddit, etc and started maintaining repos on github [1] It grew and finally last year I got the courage to try and self publish my tutorials collected for 2+ years in the form of books. 'deep dive' is a nice way to sum it up, it is amazing that there's so much to write about a tool. I knew probably about 5-10 grep options when I was at my job, and didn't know regular expressions that well. So, being able to write a book with confidence is such a satisfying experience. I still have plenty to improve (as can be observed from feedback in this thread) and I look forward to writing many more books. One simple advice I can give you is start maintaining notes for the tool you are interested in. May be blog post or a repo, that way you can share with others and get feedback. Keep adding one command at a time and in a few months you'll have plenty to write about. Good luck! [1] https://github.com/learnbyexample https://github.com/learnbyexample