vi vim ultra customizable and fast, in-terminal editor.
Command mode (:) editor always opens in this mode by default
Insert mode (i, I, a, A, o, O) use any of these to enter insert mode (see diff below)
Use Esc to exit a mode.
:w save file; don’t exit
:q quit
:wq or :x save work and quit
:q! force quit; without saving any work
:help open help manual
i I insert on left side of cursor, start of current line
a A insert (append) on right side of cursor, end of current line
o O add a line above and insert there, below
h j k l left, down, up, right
gg G goto starting line of document, ending line
w b move one word at a time forward, backward
e move one word at a time forward, with cursor at end of word
X x erase a chaarcter backwards, forwards
u U undo last action, all
Ctrl + r redo
/<searchtext> search forward (?<searchtext> for backwards)
n N move in direction of search, opposite
0 $ jump to start of current line, end