# 2012-01-06.
# http://www.unix-manuals.com/refs/vi-ref/vi-ref.htm


# Cursor control
h  Left
j  Down
k  Up
l (or spacebar)  Right
w  Forward one word
b  Back one word
e  End of word
(  Beginning of current sentence
)  Beginning of next sentence
{  Beginning of current paragraph
}  Beginning of next paragraph
[[  Beginning of current section
]]  Beginning of next section  
0  Start of current line  
$  End of current line 
^  First non-white character of current line 
+ or RETURN  First character of next line 
-  First character of previous line  
n |  character n of current line  
H  Top line of current screen 
M  Middle line of current screen  
L  Last line of current screen  
nH  n lines after top line of current screen  
nL  n lines before last line of current screen  
Ctrl-F  Forward one screen  
Ctrl-B  Back one screen  
Ctrl-D  Down half a screen  
Ctrl-U  Up half a screen  
Ctrl-E  Display another line at bottom of screen  
Ctrl-Y  Display another line at top of screen  
z RETURN  Redraw screen with cursor at top  
z .  Redraw screen with cursor in middle  
z -  Redraw screen with cursor at bottom  
Ctrl-L  Redraw screen without re-positioning  
Ctrl-R  Redraw screen without re-positioning  
/text  Search for text (forwards) 
/  Repeat forward search  
?text  Search for text (backwards)  
?  Repeat previous search backwards  
n  Repeat previous search  
N  Repeat previous search, but it opposite direction  
/text/+n  Go to line n after text  
?text?-n  Go to line n before text  
%  Find match of current parenthesis, brace, or bracket.  
Ctrl-G  Display line number of cursor 
nG  Move cursor to line number n  
:n  Move cursor to line number n  
G  Move to last line in file  
U  Restore current line

# Editing 
A  Append to end of current line
i  Insert before cursor
I  Insert at beginning of line
o  Open line above cursor
O  Open line below cursor
ESC  End of insert mode
Ctrl-I  Insert a tab
Ctrl-T  Move to next tab position
Backspace  Move back one character
Ctrl-U  Delete current line
Ctrl-V  Quote next character
Ctrl-W  Move back one word
cw  Change word
cc  Change line
C  Change from current position to end of line
dd  Delete current line
ndd  Delete n lines
D  Delete remainer of line
dw  Delete word
d}  Delete rest of paragraph
d^  Delete back to start of line
c/pat  Delete up to first occurance of pattern
dn  Delete up to next occurance of pattern
dfa  Delete up to and including a on current line
dta  Delete up to, but not including, a on current line
dL  Delete up to last line on screen
dG  Delete to end of file
J  Join two lines
p  Insert buffer after cursor
P  Insert buffer before cursor
rx  Replace character with x
Rtext  Replace text beginning at cursor
s  Substitute character
ns  Substitute n characters
S  Substitute entire line
u  Undo last change
x  Delete current cursor position
X  Delete back one character
nX  Delete previous n characters
.  Repeat last change
~  Reverse case
y  Copy current line to new buffer
yy  Copy current line
"xyy  Copy current line into buffer x
"Xd  Delete and append into buffer x
"xp  Put contents of buffer x
y]]  Copy up to next section heading
ye  Copy to end of word

# File handling
:w  Write file
:w!  Write file (ignoring warnings)
:w! file  Overwrite file (ignoring warnings)
:wq  Write file and quit
:q  Quit
:q!  Quit (even if changes not saved)
:w file  Write file as file, leaving original untouched
ZZ  Quit, only writing file if changed
:x  Quit, only writing file if changed
:n1,n2w file  Write lines n1 to n2 to file
:n1,n2w >> file  Append lines n1 to n2 to file
:e file2  Edit file2 (current file becomes alternate file)
:e!  Reload file from disk (revert to previous saved version)
:e#  Edit alternate file
%  Display current filename
#  Display alternate filename
:n  Edit next file
:n!  Edit next file (ignoring warnings)
:n files  Specify new list of files
:r file  Insert file after cursor
:r !command  Run command, and insert output after current line