https://media.goboard.io/cs183

Vi

n 2 modes

q Input mode

n ESC to back to cmd mode

q Command mode

n Cursor movement

q h (left), j (down), k (up), l (right)

q ^f (page down)

q ^b (page up)

q ^ (first char.)

q $ (last char.)

q G (bottom page)

q :1 (goto first line)

n Swtch to input mode

q a (append)

q i (insert)

q o (insert line after

q O (insert line before)

n Delete

q dd (delete a line)

q d10d (delete 10 lines)

q d$ (delete till end of line)

q dG (delete till end of file)

q x (current char.)

n Paste

q p (paste after)

q P (paste before)

n Undo

q u

n Search

q /

n Save/Quit

q :w (write)

q :q (quit)

q :wq (write and quit)

q :q! (give up changes)