ICSA700			Intro. to the unix editor - vi		Phil White
To edit a file
	vi filename

To exit vi and save changes
	ZZ or :wq

To exit vi without saving changes
	:q!

vi has three modes
	mode			enter			exit
	----------------	------------------	---------------------
	command mode		[esc]			any method of entering
							the other two modes
	edit mode		i, a, o, O		[esc]
	command line mode	: (from command	mode)	[return] [esc]

When vi begins editing a file it starts in command mode

Edit mode only lets you edit one line at a time (can't use arrow keys to
move around in the file).  To move around, you have to be in command mode.

In command mode to move around you use the following commands:
	h or left arrow		move left one character
	j or down arrow		move down one line
	k or up arrow		move up one line
	l or right arrow	move right one character
	$			move to end of current line
	0 (zero)		move to beginning of current line
	w			move to beginning of next word
	b			move to beginning of previous word
	^f (control f)		move forward one screen
	^b 			move backward one screen
	G			move to the last line of the file

From command mode, to enter edit mode use one of the following commands:
	i		insert text before cursor
	a		insert text after cursor
	o		insert text on a new line below where the cursor is
	O (cap. "O")	insert text on a new line above where the cursor is
	r		replace one character at the cursor (place you back 
			in command mode)
	R		keep replacing characters until [esc] is hit

To exit edit mode from edit mode hit [esc].

In command mode to delete text:
	x		delete one character
	dd		delete the current line
	dw		delete the current word

To copy and paste lines use:
	yy		to copy the current line
	dd		to cut the current line (same command as delete)
	p		paste cut or copied line(s) before current line
	P		paste cut or copied line(s) after current line

	mx		will mark a line with the character x
	'x		will move the cursor to mark x
	y'x		will copy lines from the current line to mark x
	d'x		will cut lines from the current line to mark x
			NOTE The mark (x above) can be any letter a-z and is not 
			     written to the file

From command mode to enter command line mode type
	:		enter command line mode

From command line mode you can execute the following commands
	wq		save current file and quit
	w		save the current file without quitting
	w filename	save the current file as a new file called 
			"filename"
	q		quit without saving (if you have made no changes)
	q!		quit without saving changes
	r filename	read in the file "filename" and put it into
			current file after the line with the cursor
	# (number)	move to line number # 

When you leave command line mode you will be placed back in to command mode.

To find a word use
	/ text		to search for the word "text" forward in the file
	? text		to search for the word "text" backward in the file