“The Book of Secret Knowledge” is a collection of awesome lists, manuals, blogs, hacks, one-liners, cli/web tools and more.  It is intended for everyone and anyone – especially for System and Network Administrators, DevOps, Pentesters or Security Researchers.
While you are at it, also have a look at:
- Hacker News:Â Ask HN: Best Command-Line Applications?
- Awesome Shell curated list
- Awesome CLI Applications curated list