"vi" Brief Summary

Here is a brief summary of the most useful "vi" commands. Most commands
may be preceeded by a count, this indicates either the number of characters
to act upon (such as in the "s") command, or the number of times to repeat
the command.

Note that "vi" has two modes, "command" and "insert". We will indicate
if a command puts you into "insert" mode. "Insert" mode may be exited by
typing <esc>.

Command		Resulting Mode		Use of Command

(editing commands)
a		insert		Allows you to append text after the cursor.
A		insert		Allows you to append text at the end of the
				current line.
i		insert		Allows you to insert text before the cursor.
I		insert		Allows you to insert text at the beginning of
				the current line.

s		insert		Substitutes the number of characters specified
				by the count for what is entered during insert
				mode.
S		insert		Substitute the entire line for what is typed
				during insert mode.
r		command		Replace the character at the cursor with the
				next character typed
Y		command		Yank the number of lines specified by count.
P		command		Put back the yanked lines before the current 
				line.
p		command		Put back the yanked lines after the current 
				line.
x		command		eXpunge the character after the cursor.
X		command		eXpunge the character before the cursor.
dd		command		Delete the current line. 
dw		command		Delete the next word.
D		command		Delete from the cursor to the end of the line.
u		command		Undo the last change made.
.		command		Repeat the last change made.

(Positioning Within The File)
h		command		move one character to the left.
j		command		move down (staying in the same column).
k		command		move up (staying in the same column).
l		command		move one character to the right.
G		command		Go To the line number specified  by the count.
				If no count is given, go to the end of the file.

$		command		Go to the end of the line.
^		command		Go to the first non-white space on the line.
0		command		Go to the beginning of the line.

f		command		(follow this command with any character).
				Find the character, looking left to right
				within the line. 
F		command		The same as "f", except look right to left.
;		command		Repeat the last "f" or "F" command.
,		command		Repeat the last "f" or "F" command, in the 
				other direction.
%		command		Go to the matching ( or ).
^F,^B		command		Forward Screen (Backward Screen)
^U,^D		command		Up Window (Down Window)

(Searching)
/		This leaves you on the command line at the bottom. Enter
		the string to search (forward) for, terminate with <RETURN>
?		The same as /, except in the other direction in the file.
n		Search for the next occurance, in the same direction.
N		Search for the next occurance, in the opposite direction.

(Miscellanous)
J		Join the next line to this line.
:r <filename>	Read the given file into the current file, placing it after
		the current line.
:w		Write the current file out.
:q		Quit.
:wq		Write and quit.
:q!		Quit, discarding changes.
:e!		ReEdit the current file, discarding changes.
:1,$s/old/new/g	Global change of "old" for "new". For full information on this
		command, see the "ex" and the "edit" manuals. 
^L		Redraw the current screen.