File-handling :
C-x C-f Find file.
C-x C-v Find alternate file.
C-x i Insert file
C-x C-s Save file.
C-x C-w Save as file.
C-x C-c Exit.
Control commands :
C-g Abort current command.
C-x u Undo last command.
C-_ Undo previous edit.
M-x
revert-buffer Undo all changes since you last saved the file.
Help :
C-h Help command.
C-h t Start Emacs tutorial.
C-h i Start info documentation reader.
M-x man
<enter>
<command>
<enter> Read man pages.
Navigation :
C-f Move forward one character.
C-b Move backward one character.
M-f Move forward one word.
M-b Move back one word.
C-p Move to previous line.
C-n Move to next line.
C-a Move to beginning of line.
C-e Move to end of line.
M-a Move one sentence backward.
M-e Move one sentence forward.
M-} Move forward one paragraph.
M-{ Move backward one paragraph.
C-v Scroll up.
M-v Scroll down.
C-x ] Move forward one page.
C-x [ Move backward one page.
M-< Move to beginning of file.
M-> Move to end of file.
C-l Recenter.
M-n Repeat next command n times.
C-u n Repeat next command n times; four times, if
n not specified.
Clipboard commands :
C-d Delete character under cursor.
Del
M-d Kill word.
M-Del
C-y Paste what you cut.
C-Space Mark the beginning or end of file.
M-h Mark paragraph.
M-w Copy the marked region.
C-w Delete a marked region.
C-x h Mark whole buffer.
C-x C-p Mark page.
C-x C-x Exchange location of cursor and mark.
M-y After C-y, paste earlier deletion.
Formatting text :
M-q Reformat paragraph.
C-M-\ Indent each line between cursor and mark.
M-m Move to first nonblank character on the line.
M-^ Join this line to previous one.
C-t Transpose characters.
M-t Transpose two words.
C-x C-t Transpose lines.
M-c Capitalize following word.
M-u Uppercase following word.
M-l Lowercase following word.
M-/ Word completion. Useful when coding.
Search :
C-s Search forward.
C-r Search backward.
C-s C-w Incremental search on the word the cursor is on.
C-s C-y Incremental search on word on cursor till end of line.
C-s M-y Incremental search with text from kill ring as
search string.
C-s C-s Repeat previous search.
C-r C-r Repeat previous search backward.
C-M-s Enter Search regex forward.
C-M-r Enter Search regex backward.
C-M-s Search regex incrementally forward.
C-M-r Search regex incrementally backward.
C-M-% Query-replace regex.
M-x
query-replace
<enter>
Query replace:
—- Responses during query-replace
Space or y Replace and go to next instance.
Del or n Don’t replace; move to next instance.
. Replace the current instance and quit.
, Replace and let me see the result before moving on.
! Replace all.
^ Back up to the previous instance.
Enter or q Exit query-replace.
E Modify the replacement string.
C-r Enter a recursive edit.
C-w Delete this instance and enter a recursive edit.
C-M-c Edit recursive edit and resume query-replace.
C-] Exit recursive edit and exit query-replace.
Buffer commands :
C-x b Switch to buffer.
C-x C-b Display the buffer list.
C-x k Kill buffer.
C-x -> Move to next buffer.
C-x <- Move to previous buffer.
Buffer list commands :
C-n,
Space,
n,or
(down arrow) Move to next buffer, downwards.
C-p,
p,
or(up arrow) Move to previous buffer, upwards.
m Mark buffers to be displayed in windows.
d,or x Mark buffer for deletion.
u Unmark buffer.
Del Unmark the previous buffer in the list.
s Save buffer.
~ Mark buffer as unmodified.
% Toggle read-only status on buffer.
1 Display buffer in full screen.
2 Display this buffer and next in horizontal window.
f Replace buffer list with this buffer.
o Replace other window with this buffer.
v Display buffers marked with m.
q Quit buffer list.
Windows :
C-x 2 Split window vertically.
C-x 3 Split window horizontally.
C-x o Move to other window.
C-x 0 Delete current window (C-x zero).
C-x 1 Delete other windows.
C-x 4 f Find file in the other window.
C-x 4 b Select buffer in the other window.
C-x > Scroll right.
C-x < Scroll left.
C-x ^ Enlarge window.
C-x } Enlarge window horizontally.
C-x { Shring window horizontally.
C-x + Balance windows.
C-M-v Scroll other window.
C-x – Make window smaller if buffer is smaller than window.
Frames :
C-x 5 2 Create new frame on current buffer.
C-x 5 o Move to other frame.
C-x 5 0 Delete current frame.
C-x 5 f Find file in new frame.
C-x 5 r Find file in new frame, read-only mode.
C-x 5 b Switch to buffer in new frame.
Shell mode commands :
M-! Run a command.
C-u M-! Run command and output in current buffer.
M-h M-! Mark region and execute command on region.
M-x shell Enter shell mode.
M-x eshell Enter eshell mode.
C-d Send EOF character to buffer; delete character elsewhere.
C-c C-c Interrupt current job. Same as C-c.
C-c C-d Send EOF character.
C-c C-z Suspend or stop job.
C-c C-u Erase current line.
M-p Retrieve previous commands.
M-n Retrieve subsequent commands.
C-c C-o Delete output from last command.
C-c C-r Move first line of output to top of window.
C-c C-e Move last line of output to bottom of window.
C-c C-p Move to previous command.
C-c C-n Move to next command.
M-x ansi-term Enter ANSI terminal.
Dired commands :
C-x d Start Dired.
h Display descriptive help text for Dired.
n Move to next line.
p Move up a line.
+ Create a directory.
C Copy file.
R Rename file.
g Re-read the directory from disk.
M Use chmod command on this file.
O Change ownership of file.
G Change group permissions.
A Do regex search on marked files.
B Byte-compile file.
d Flag for deletion.
D Query for immediate deletion.
e Edit this file.
f Find file to edit.
v View file.
w Copy filename to kill ring.
H Create a hard link to this file.
S Create symbolic link file.
i Add list of this subdirectory to current dired buffer;
If already there, just move to it.
k Remove line from display, don’t delete file.
L Load file.
m Mark with *.
u Remove mark.
x Delete files flagged with D.
s Sort by date or file (toggles between the two).
t Toggle marks on files and directories.
o Find file in another window; move there.
C-o Find file in another window; don’t move there.
P Print file.
q Quit.
Q Query-replace string in marked files.
y Display information on type of file from file command.
Z Compress or uncompress file.
~ Flag backup files for deletion.
# Flag auto-save files for deletion.
& Flag garbage files for deletion.
. Flag numbered backups for deletion.
= Compare this file to another file (the one at the mark).
M-= Compare this file with its backup file.
!,or X Ask for shell command to execute on the current file or
marked files.
> Move to next directory.
< Move to previous directory.
^ Find the parent directory in a Dired buffer.
$ Hide or show the current directory.
M-$ Hide all subdirectories, leaving only their names;
repeat to toggle.
C-M-n Move to next subdirectory.
C-M-p Move to previous subdirectory.
C-M-u If you have inserted subdirectories using i, move to
the parent directory in this buffer.
C-M-d If you have inserted subdirectories using i, move the
first subdirectory for this directory in this buffer.
*c Change marks on specified files.
*!,or M-Del Remove all marks from all files.
** Mark executables.
*/ Mark directories.
*@ Mark symlinks.
M-} Move to the next file marked with * or D.
M-{ Move to the previous file marked with * or D.
%d Flag for deletion files that match regex.
%g Mark files whose contents match regex.
%l Lowercase marked files.
%R Rename files with filenames that match regex.
%u Uppercae marked files.
Calendar :
C-f Move forward a day.
C-b Move backward a day.
C-n Move forward a week.
C-p Move backward a week.
M-} Move forward one month.
M-{ Move backward a month.
C-x ] Move forward a year.
C-x [ Move backward a year.
C-a Move to the beginning of the week.
C-e Move to the end of the week.
M-a Move to the beginning of the month.
M-e Move to the end of the month.
M-< Move to the beginning of the year.
M-> Move to the end of the year.
g d Go to specified date.
o Put the specified month in the middle of the display.
C-x < Scroll forward one month.
C-x > Scroll backward one month.
C-v Scroll forward three months.
M-v Scroll backward three months.
Space Scroll another window.
C motion commands :
M-a Move to beginning of current statement.
M-e Move to end of current statement.
M-q If in comment, fill paragraph, preserving indentation.
C-M-a Move to beginning of function body.
C-M-e Move to end of function.
C-M-h Put cursor at beginning of function, the mark at the end.
C-c C-q Indent the entire function.
C-c C-u Move to beginning of current preprocessor conditional.
C-c C-p Move to previous preprocessor conditional.
C-c C-n Move to next preprocessor conditional.
Cscope :
C-c s, is common prefix for the following commands:
s Find symbol
d Find global definition
g Find global definition (alternate binding)
G Find global definition without prompting.
c Find functions calling this function.
C Find functions called from this function.
t Find text string.
e Find egrep pattern.
f Find file.
i Find files including this file.
In search results :
b Display cscope buffer.
B Auto display *cscope* buffer toggle
n Next symbol.
p Previous symbol.
N Next file.
P Previous file.
u Pop mark (go to previous search entry mark).
a Set initial directory.
A Unset initial directory.
L Create list of files toindex.
I Create list and index.
Org-mode :
<TAB> Subtree cycling
S-<TAB> Global cycling
C-c C-t Rotate the TODO state
.-> unmarked -> TODO -> DONE -.
‘——————————‘
C-c C-x C-a Archive
C-C C-x C-s,or Move subtree to separate archive file
C-c $
C-c C-c Toggle checkbox status
C-c # Update statistics
Atul Raut Blog 