Linux shell cheatsheet (Can it become one?)

I love the command line, the CLI. I wish somethings were a little bit different allowing me to use CLI for every task, but the world is a cruel place, apart from stupid M$ mistakes regarding their crappy GUI. You do realize there wouldn't be such a crappy product without dependency on the GUI, right?
I'm not categorizing it right now, because there's not much to categorize actually

Show line number in "grep" output: grep "text" -n