Vim- Key combinations and Usage

Global

:help keyword - open help for keyword
:saveas file - save file as
:close- close current pane
K - open man page for word under the cursor

Cursor movement

h - move cursor left
j - move cursor down
k - move cursor up
l - move cursor right
H - move to top of screen
M - move to middle of screen
L - move to bottom of screen
w - jump forwards to the start of a word
W - jump forwards to the start of a word (words can contain punctuation)
e - jump forwards to the end of a word
E - jump forwards to the end of a word (words can contain punctuation)
b - jump backwards to the start of a word
B - jump backwards to the start of a word (words can contain punctuation)
% - move to matching character (default supported pairs: '()', '', '[]' - use :h matchpairs in vim for more info)
0 - jump to the start of the line
^ - jump to the first non-blank character of the line
$ - jump to the end of the line
g_ - jump to the last non-blank character of the line
gg - go to the first line of the document
G - go to the last line of the document
5G - go to line 5
fx - jump to next occurrence of character
tx - jump to before next occurrence of character
Fx - jump to previous occurence of character
Tx - jump to after previous occurence of character
; - repeat previous f, t, F or T movement
, - repeat previous f, t, F or T movement, backwards
zz - center cursor on screen
Ctrl + e - move screen down one line (without moving cursor)
Ctrl + y - move screen up one line (without moving cursor)
Ctrl + b - move back one full screen
Ctrl + f - move forward one full screen
Ctrl + d - move forward 1/2 a screen
Ctrl + u - move back 1/2 a screen

-Tip: Prefix a cursor movement command with a number to repeat it. For example, 4j moves down 4 lines.

Insert mode - inserting/appending text

i - insert before the cursor
I - insert at the beginning of the line
a - insert (append) after the cursor
A - insert (append) at the end of the line
o - append (open) a new line below the current line
O - append (open) a new line above the current line
ea - insert (append) at the end of the word
Esc - exit insert mode

Editing

r - replace a single character
J - join line below to the current one with one space in between
gJ - join line below to the current one without space in between
gwip - reflow paragraph
cc - change (replace) entire line
C - change (replace) to the end of the line
c$ - change (replace) to the end of the line
ciw - change (replace) entire word
cw - change (replace) to the end of the word
s - delete character and substitute text
S - delete line and substitute text (same as cc)
xp - transpose two letters (delete and paste)
u - undo
Ctrl + r - redo
. - repeat last command

Marking text (visual mode)

v - start visual mode, mark lines, then do a command (like y-yank)
V - start linewise visual mode
o - move to other end of marked area
Ctrl + v - start visual block mode
O - move to other corner of block
aw - mark a word
ab - a block with ()
aB - a block with
ib - inner block with ()
iB - inner block with
Esc - exit visual mode

Visual commands

> - shift text right
y - yank (copy) marked text
d - delete marked text
~ - switch case

Registers

:reg - show registers content
"xy - yank into register
"xp - paste contents of register

Tip: Registers are being stored in ~/.viminfo, and will be loaded again on next restart of vim. Tip Register 0 contains always the value of the last yank command.

Marks

:marks - list of marks
ma - set current position for mark A
`a - jump to position of mark A
y`a - yank text to position of mark A

Macros

qa - record macro a
q - stop recording macro
@a - run macro a
@@ - rerun last run macro

Cut and paste

yy - yank (copy) a line
2yy - yank (copy) 2 lines
yw - yank (copy) the characters of the word from the cursor position to the start of the next word
y$ - yank (copy) to end of line
p - put (paste) the clipboard after cursor
P - put (paste) before cursor
dd - delete (cut) a line
2dd - delete (cut) 2 lines
dw - delete (cut) the characters of the word from the cursor position to the start of the next word
D - delete (cut) to the end of the line
d$ - delete (cut) to the end of the line
x - delete (cut) character

Exiting

:w - write (save) the file, but don't exit
:w !sudo tee % - write out the current file using sudo
:wq or :x or ZZ - write (save) and quit
:q - quit (fails if there are unsaved changes)
:q! or ZQ - quit and throw away unsaved changes
:wqa - write (save) and quit on all tabs

Search and replace

/pattern - search for pattern
?pattern - search backward for pattern
\vpattern - 'very magic' pattern: non-alphanumeric characters are interpreted as special regex symbols (no escaping needed)
n - repeat search in same direction
N - repeat search in opposite direction
:%s/old/new/g - replace all old with new throughout file
:%s/old/new/gc - replace all old with new throughout file with confirmations
:noh - remove highlighting of search matches

Search in multiple files

:vimgrep /pattern/ {file} - search for pattern in multiple files
e.g. : vimgrep /foo/ */
:cn - jump to the next match
:cp - jump to the previous match
:copen - open a window containing the list of matches

Working with multiple files

:e file - edit a file in a new buffer
:bnext or :bn - go to the next buffer
:bprev or :bp - go to the previous buffer
:bd - delete a buffer (close a file)
:ls - list all open buffers
:sp file - open a file in a new buffer and split window
:vsp file - open a file in a new buffer and vertically split window
Ctrl + ws - split window
Ctrl + ww - switch windows
Ctrl + wq - quit a window
Ctrl + wv - split window vertically
Ctrl + wh - move cursor to the left window (vertical split)
Ctrl + wl - move cursor to the right window (vertical split)
Ctrl + wj - move cursor to the window below (horizontal split)
Ctrl + wk - move cursor to the window above (horizontal split)