i (normal mode): enter editing mode;
:w (normal mode): save without quitting;
:x (normal mode): save and quit;
:! [terminal command] (normal mode) : run a terminal command from inside vim;
esc (edit mode): enter normal mode;
:tabedit [filename] (normal mode): open a second tab;
gt (normal mode): switch between open tabs;
Vim is a text editor available inside the linux terminal!
it comes pre-installed on almost everything, just try opening the terminal and typing in "vi"
if you see a blinking cursor and a bunch of lines, you're in!
normal mode= you can't type in text
edit mode= you can type in text