Linux bash man page
man bash is huge, 5.3k lines, hard to find info. If you are a info/emacs user, you can install the info manual, that is nicely separated into chapters.
sudo apt-get install bash-doc.
Once installed, launch emacs
emacs &, then type 【F1 i】. Then, you can use mouse to browse just like a web browser.
Or, you can use keys.
Here's the most important info keys: