VI editor

To show line numbers in VI, do a :set number. Alternatively, put the following in ~/.exrc

.exrc
set number


VI block commenting

1. Go to the first line you want commented, and hit V.
2. Use your favorite method to reach the last line of the block.
3. Type:
:s/^/# /

VI commands

VI Commands:
i		insert mode, (ESC to exit insert mode) allows text to be entered on the screen
a		Append to right mode
/word		Move to the occurrence of "word"
n		Locate the next occurance
w		Advance to the next word
e		Advance to the next end of a word
b		Move to the previous word
3b		Move backward 3 words
dd		delete line
3dd		delete 3 lines
D		Delete remainder of a line
dw		Delete word
x		Delete character
o		Open space for new line below the cursor line
O		Open a line above the cursor
CTRL-w		Move back a word in append mode
u		Undo last
U		Undo all changes to current line
.		In command mode, repeat the last text changing the command on the current line
:w newfilename		save the file to newfilename from the command mode
:wq		save and quit
:q!		quit without saving
r		replace then typa a character ot be replaced with r then return to break up a line
J		join 2 lines
s		substitute (sentence) typed text over a character, ESC when done
cw		change word
c		change part of a line from the cursor to the end of the line
cc		substitute new text for aline, ESC when done
h		move the cursor back one space
H		move the cursor to the highest line on the screen
L		move the cursor to the lowest line on the screen
M		position the cursor at the midpoint on the screen
G		last line in the file
0 (zero)		Move the cursor to the beginning of the line it is on
view filename		Open a file for viewing only
set number		Turn on line numbers
set nonumber		Turn off line numbers

Options:
	
number		
autoindent (ai)		ctrl-d to move to the left
showmatch		match brackets and parenthesis
tabstop=4		
wrapmargine(wm) 		when line is wrapped (80-value)
:2 copy 4		Place a copy of line 2 after line 4.
:1,4 		copy 7 (lines 1-4)
:n		Access the next file for editing


Turn off vi auto-indent madless

set nocindent
set nosmartindent
set noautoindent
filetype indent off
filetype plugin indent off

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