Vi Cheatsheet
| Command | Meaning | 
|---|---|
| h | move cursor left | 
| j | move cursor down | 
| k | move cursor up | 
| l | move cursor right | 
| a | add after char | 
| i | add before char | 
| A | add end of line | 
| I | add start of line | 
| o | add below line | 
| O | add above line | 
| dd | delete one line | 
| x | delete one char | 
| :w | save | 
| :q | quit | 
| :wq | save and quit | 
| :w! | force save | 
| :q! | force quit |