C-x	hold Ctrl down and press x
M-x	hold Meta (Alt) down and press x
     or	press Esc then press x

Files:
	Open file (find-file)
	Files/Open File...	C-x C-f

	Save file (save-buffer)
	Files/Save Buffer	C-x C-s

	Exit emacs (save-buffers-kill-emacs)
	Files/Exit Emacs	C-x C-c

Moving about:
    	cursor (by one char)
		left,up,right,down
		C-b, C-p, C-f, C-n (back, previous, forward, next)
    	cursor (by one word)
		M-left, M-right
		M-b, M-f
    	scroll page
		PgUp, PgDown
		C-v, M-v
    	start and end of document
		Home, End
		M-<,  M->
	start and end of line
		C-a, C-e
    	goto-line
		M-x goto-line LINE

Marks and registers
	set-mark-command	C-<SPC>
	exchange-point-and-mark	C-x C-x
	showing mark region
		Help -> Options -> Transient Mark Mode
	go back to a mark	C-u C-<SPC>
		returns to a mark stored in the mark ring
	point-to-register	C-x r <SPC> R
		save position in register R (could be also any other name)
	jump-to-register	C-x r j R
		jump to the position in register R

Repeating commands
    	numeric arguments
		hold down Meta, and type in the number or
		<ESC> and type in the number or
		C-u and type in the numbers
		just C-u "multiply by four"
		C-u C-u C-f moves forward sixteen chars

Undo
	undo		C-/ or C-<UNDERSCORE> or C-x u
		a regular undo
	redo
		after you undo, do anything else (e.g., move cursor)
		and then previous undo's are valid edits that can
		be undone (redone)
	region undo	C-u C-/ or C-u C-<USCORE> or C-u C-x u
		mark a region, then prepend undo with C-u, and the
		undo only happens within the region
	keyboard-quit	C-g
		quit the execution of a command
		this is what you hit when you get messed up...

Copy-paste-cut-delete...
	kill-line	C-k
		kills line until EOL, if want that too hit C-k again
	yank		C-y
		Reinserts the last stretch of killed text
	yank-pop	M-y
		Replace just-yanked kill with a different one from kill ring
	clipboard-yank	Edit/Paste
	kill-region	C-w
		Kill between point and mark (save in the kill ring)
	kill-ring-save	M-w
		Save the region in the kill ring but don't kill
	delete-char	C-d
		Kill the following N characters
	kill-word	M-d
		Kills characters forward until end of a word (N times)
	delete-backward-char	DEL
		Kill the previous N characters
	backward-kill-word	M-DEL
		Kills characters backward until end of a word (N times)
	Note:	single character kills don't got to the kill buffer,
		multi character kills do
	Do it in blocks:
	clear-rectangle		C-x r c
		Blank out marked rectangle
	kill-rectangle		C-x r k
	yank-rectangle		C-x r y
	
Finding help
	describe-key		C-h k KEY
		try: C-h k M-v
	info			C-h i
		contains among other things the emacs manual
	apropos-command		C-h a APROPOS-REGEXP
		try: C-h a tags
	     	move cursor to the line list-tags, hit enter
	describe-function	C-h f FUN
		try: C-h f desc <TAB> fu <TAB> <RET>
		try: C-h f info <RET>

Search and replace
	isearch-forward		C-s
		incremental search forward
	isearch-backward	C-r
		the same backward
	More info about search: C-h k C-s
	  e.g.:	repeat the same search by hitting C-s (forward) or C-r (backward)
		C-w, C-y, M-y to yank stuff to the search string
		M-n (next) and M-p (prev) item in search string
	Try info command:
		C-h i
			info command
		scroll down to line with boldface Emacs, hit <RET>
			enter a topic with <RET>
		C-s search <RET>
			search for search, enter
		C-s incr C-s C-s <RET> <RET>
			incrementally search for incr, the third time's the charm
			read about incremental search
		n
			next topic is about nonincremental search
		u
			go back up to general info about search
	query-replace		M-%
		query-replace FROM-STRING TO-STRING
		you have to tell what to do with each match,
		instructions by hitting C-h, e.g.,
			y	replace
			n	skip
			q,RET	exit
			!	replace all matches
			and others...
		
Buffers:
	Buffers/List All Buffers C-x C-b
	switch-to-buffer	C-x b
	kill-buffer		C-x k

Windows:
	other-window				C-x o
	delete-window				C-x 0
	delete-other-windows			C-x 1
	split-window-vertically			C-x 2
	split-window-horizontally 		C-x 3
	make window narrower/wider/taller	C-x {, C-x }, C-x ^

Macros
	start-kbd-macro		C-x (
	end-kbd-macro		C-x )
	call-last-kbd-macro	C-x e

Programming help
	comment-region		M-x comment-region
		comment out the marked region
	uncomment region	C-u M-x comment-region
		uncomment the marked region
	vc-toggle-read-only	C-x C-q
		If the file is under CVS, check the file in (commit).
		Otherwise, just change the read-only flag of the buffer.
		With a prefix arg, ask for the version number.
	compile			M-x compile COMMAND
		Runs COMMAND (default make) in a separate process,
		output goes to buffer *compilation*
	grep			M-x grep COMMAND-ARGS
		Runs grep and collects output in a buffer
	next-error		C-x ` or M-x next-error
		go to the next compilation error or the next grep hit

Python-mode specific
	py-comment-region	C-c #
		comment out the marked region with ##
	uncomment py-comment	C-u C-c #
		uncomment ##
	py-shift-region-left	C-c <
		shift the region left by py-indent-offset columns
	py-shift-region-right	C-c >
		shift the region right by py-indent-offset columns
	py-execute-region	C-c |
	py-shell		C-c !
	py-beginning-of-def-or-class	M-C-a
	py-end-of-def-or-class		M-C-e

Variables
	describe variable	C-h v VAR <RET>
		e.g., C-h v py-indent-offset
	change variable		M-x set-variable <RET> VAR <RET> VALUE <RET>>
		e.g., M-x set-variable <RET> py-indent-offset <RET> 4 <RET>

Dired
	dired 			C-x d DIRNAME
		Edit directory DIRNAME (delete, rename, ...)
		h	to get info on dired
		+	create a new directory
		RET	find current line's file or dired a dir
		s	toggle sorting by name/date
		d	mark for deletion
		DEL	unmark for deletion
		x	execute deletions
		g	update buffer
		...