C-x (File, Common)#

C-x C-f		Find File
C-x C-s		Save File
C-x C-w		Write (Save-As)
C-x C-c		Quit
C-x C-z		Suspend Emacs
C-x b	switch-to-buffer	Move to buffer specified
C-x →	next-buffer	Move to the next buffer in the buffer list
C-x ←	previous-buffer	Move to the previous buffer in the buffer list
C-x C-b	list-buffers	Display the buffer list
C-x k	kill-buffer	Delete the buffer specified
	kill-some-buffers	Ask about deleting each buffer
C-x s	save-some-buffers	Ask whether you want to save each modified buffer

Moving Around#

C-f	Forward character
M-f	Forward word
C-b	Back character
M-b	Back word
C-a	Beginning of line
M-m	First non-whitespace character in line
C-e	End of line
C-p	Previous line
C-n	Next line
M-}	Forward paragraph
M-{	Back paragraph
M-<	Beginning of buffer
M->	End of buffer
M-g g M-g M-g	goto-line
C-l	Re-Center display
C-l C-l	Set current line to top of display
C-l C-l C-l	Set current line to bottom of display

Search#

C-s	Search
M-Shift-%	Search & Replace
C-M-Shift-%	Regex Search & Replace

Fail-safe#

M-x text-mode	Text mode
M-x fundamental-mode	Fundamental mode

Selecting, Killing and Pasting#

C-Space C-@	set-mark-command	Mark the beginning (or end) of a region
C-w	kill-region	Cut / Delete region
M-w	kill-ring-save	Copy the region (so it can be pasted with C-y)
C-y	yank	Paste most recently killed or copied text
M-y	yank-pop	After C-y, pastes earlier deletion
C-x C-x	exchange-point-and-mark	Exchange location of cursor and mark
M-h	mark-paragraph	Mark paragraph
C-x C-p	mark-page	Mark page
C-x h	mark-whole-buffer	Mark buffer
C-k		delete to end of line
C-0 C-k		delete to beginning of line

Canceling Commands and Undoing#

C-/ C-_ C-x u	Undo (one by one)
M-x revert-buffer RET	Undo all changes since last save

Frame Commands#

C-x 5 o	other-frame	Move to other frame
C-x 5 0	delete-frame	Delete current frame
C-x 5 2	make-frame	Create a new frame on the current buffer
C-x 5 f	find-file-other-frame	Find file in a new frame
C-x 5 r	find-file-read-only-other-frame	find a file in a new frame, but it is read-only
C-x 5 b	switch-to-buffer-other-frame	Make frame and display other buffer in it

Window Commands#

C-x 2	split-window-vertically	Divide current window into two windows, one above the other
C-x 3	split-window-horizontally	Divide current window into two side-by-side windows
C-x >	scroll-right	Scroll the window right
C-x <	scroll-left	Scroll the window left
C-x o	other-window	Move to the other window. If there are several, move to the next window
C-x 0	delete-window	Delete the current window
C-x 1	delete-other-windows	Delete all windows but this one
	delete-windows-on	Delete all windows on a given buffer
C-x ^	enlarge-window	Make window taller
	shrink-window	Make window shorter
C-x }	enlarge-window-horizontally	Make window wider
C-x {	shrink-window-horizontally	Make window narrower
C-x -	shrink-window-if-larger-than-buffer	Make window smaller if buffer is smaller than window
C-x +	balance-windows	Make windows the same size
C-M-v	scroll-other-window	Scroll other window
C-x 4 f	find-file-other-window	Find a file in the other window
C-x 4 b	switch-to-buffer-other-window	Select a buffer in the other window
	compare-windows	Compare this window with the next window and show the first difference

Compilation mode commands#

C-x `	next-error	Move to the next error message and visit the corresponding source code
M-n	compilation-next-error	Move to the next error message
M-p	compilation-previous-error	Move the previous error message
C-c C-c	compilation-goto-error	Visit the source code for the current error message
Space	scroll-down	Scroll down one screen
Del	scroll-up	Scroll up one screen

Python Mode#

C-j	Insert a new line with the same indentation level as the current line
RET	Insert a new line with the same indentation level as the current line
C-M-a	Go to the beginning of the current function or class
C-M-e	Go to the end of the current function or class
C-M-h	Mark the current function or class for copying, etc.
C-M-x	Execute the current function or class
C-c C-b	Submit a bug report
C-c C-c	Execute the buffer (i.e., the file being displayed)
C-c C-d	Trace the stack of the process being executed
C-c C-h	Get context-based help
C-c TAB	Indent a highlighted (or marked) region
C-c C-k	Mark a block of text. Using this at the head of a class or function definition will mark the entire block.
C-c C-l	Shift the region to the left. If the cursor is in the middle of a region, the lower half of the region will shift.
C-c RET	Execute the current file, opening a new window to show the output.
C-c C-n	Jump to the next statement.
C-c C-p	Jump to the previous statement.
C-c C-r	Shift the region to the right. If the cursor is in the middle of a region, the lower half of the region will shift.
C-c C-s	Execute a Python command.
C-c C-t	Toggle shells
C-c C-u	Go up one block
C-c C-v	List the version of the Python mode
C-c C-w	Run PyChecker
C-c !	Open the Python interactive shell
C-c #	Comment the highlighted (marked) region
C-c :	Check the indentation off-set
C-c <	Shift the region to the left
C-c >	Shift the region to the right
C-c ?	Show Python mode documentation
C-c PIPE	Execute the highlighted (marked) part of the current program.

Software Development#

M-x compile	Will prompt for make command, then execute
M-x recompile	Will repeat last compile command without prompting

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Emacs