A.R.F.A Labs | Linux shell guide | User manual
Arsalaan Hasan Shaikh, Falak Nishant Chalasany

WHAT IT DOES
A command guide you search by what you want to do. Type delete and it
finds rm. Type add to a file and it finds >>.

SCRIPT
  bash guide.sh
Type a word to search, a number to run that example, q to quit.
Examples run in a temporary folder that is removed when you quit.
Your own files are never touched.

  bash guide.sh copy
lists the commands matching "copy" first.

WEB BOOK
Open index.html. Click Open the book, then type in the search box or
click a command on the index page. Each entry has what it does, what to
type, what you see, other words for it and related commands.
Hint: some words in the entries do more when clicked.

REQUIREMENTS
bash 4 or newer on Linux or WSL. On macOS the default bash is too old,
install a newer one or use the web book.