Vim (vi improved)

Esc  –  Return to NORMAL mode
Ctrl c  –  Exit INSERT mode
i  –  Enter INSERT mode ( Insert before the cursor )
I  –  Enter INSERT mode ( Insert at the begining of the line )
v  –  Enter VISUAL mode
V  –  Enter VISUAL LINE mode
Ctrl v  –  Enter VISUAL BLOCK mode

i  –  Insert before the cursor
I  –  Insert at the begining of the line
o  –  Insert new line below
O  –  Insert new line above
a  –  Insert at current cursor position
A  –  Insert at end of line
e a  –  Insert at end of word
Ctrl w  –  Delete word before cursor
Ctrl j  –  Add line break at cursor
Ctrl t  –  Indent
Ctrl d  –  Unindent
Ctrl n  –  Auto complete next match
Ctrl p  –  Auto complete previous match

w  –  Move to start of next word
W  –  Move to start of next word with punctuation
b  –  Move to start of last word
B  –  Move to start of last word with punctuation
e  –  Move to end of next word
E  –  Move to end of next word with punctuation
g e  –  Move to end of last word
g E  –  Move to end of last word with punctuation
H  –  Move to the top of the screen
M  –  Move to thge middle of the screen
L  –  Move to the bottom of the screen
z z  –  Center the cursor on the screen
z t  –  Positon the cursor to the top of the screen
z b  –  Positon the cursor to the bottom of the screen
Ctrl u  –  Move cursor and screen up 1/2 a page
Ctrl d  –  Move cursor and screen down 1/2 a page
g g  –  Go to first line, can be prefixed with a line number eg: 52gg
g d  –  Go to local definition
g D  –  Go to global definition
f #  –  Find next # character i.e. f a to find the next letter a on a line etc…
F #  –  Find previous # character
t #  –  Find next # character and put cursor after
T #  –  Find previous # character and put cursor after
;  –  Repeat last t f T F search
,  –  Repeat last t f T F search backwards
G  –  Go to last line
$  –  Go to end of line
g _  –  Go to last non-blank char of line
0  –  Go to begining of line
^  –  Go to first non-blank char of line
}  –  Go to next empty line (down)
{  –  Go to previous empty line (up)
%  –  Go to matching {} [] ()

n  –  Repeat search in same direction
N  –  Repeat search in opposite direction
:%s/search/replace/g  –  Replace all search with replace throughout file
:%s/search/replace/gc  –  Replace all search with replace throughout file with confirmation
:noh[lsearch]  –  Remove highlighting of search matches

:vim[grep] /string/ {`{file}`}  –  Search for string in files (:vim /foo/ **/*)
:cn[ext]  –  Next match
:cp[revious]  –  Previous match
:cope[n]  –  Open list of matches
:cll[ose]  –  Close list of matches

<leader> /  –  Comment out entire line
<leader> ?  –  Remove comment (entire line)
<leader> c d  –  Change working directory to the directory of the current document
F2  –  Open netrw in right split
Shift F2  –  Open netrw full buffer
F3  –  Toggle indent lines on/off
Shift F3  –  Toggle spell on/off
F4  –  Re-indent entire buffer
F5  –  make run
Shift F5  –  make debug
Ctrl F5  –  make clean
F12  –  Convert [dos] to [unix]

Ctrl w s  –  Split window
Ctrl w v  –  Split window vertically
Ctrl w w  –  Switch windows
Ctrl w q  –  Quit window
Ctrl w =  –  Make all window the same size
Ctrl w x  –  Exchange current window with next one
Ctrl w l  –  Move cursor to the right window
Ctrl w h  –  Move cursor to the left window
Ctrl w j  –  Move cursor to the lower window
Ctrl w k  –  Move cursor to the upper window
Ctrl w L  –  Make current window full height on right
Ctrl w H  –  Make current window full height on left
Ctrl w J  –  Make current window full height on bottom
Ctrl w K  –  Make current window full height on top

:tabnew <file>  –  Open <file> in new tab
Ctrl w T  –  Move split window to its own tab
g t  –  Next tab or :tabn[ext]
g T  –  Previous tab or :tabp[revious]
w q  –  Quit window
:tabc[lose]  –  Close current tab
:tabm[ove] <num>  –  Move to tab <file>