My Emacs Cheat Sheet

A Software › Emacs cheat sheet in English by CmdrDats

A cheat sheet for most commonly used keyboard shortcuts while writing clojure code, using my emacs config at https://github.com/cmdrdats/emacs-ext

Emacs Editor Text OSX Clojure

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emacs OSX basics

Emacs Key	Name	OSX
M	Meta	Alt - ⌥
C	Control	Ctrl
s	Special	Command - ⌘
S	Shift	Shift

Quick reference on reading emacs keys.
eg: C-M-x = Ctrl + âŒ¥ + x in OSX. C-s s = Ctrl + s, s

Window Management

M-s-arrow	Flip buffer in direction of arrow
s-arrow	Jump to window in direction of arrow
s-S-arrow	Resize in direction of arrow
C-x 3	Split window vertically
C-x 2	Split window horizontolly
C-x 1	Unsplit everything

Essential emacs

C-x C-f	Open file
s-k	Kill current buffer
C-x b	Switch buffer
C-x C-b	Show buffer list
s-n	Find file in project
M-%	Search and replace in buffer
C-f	Find in buffer
F6	Highlight regex
M-F6	Unhighlight regex
C-g	Cancel current command

nRepl

C-M-x	Evaluate top level form
C-x C-e	Evaluate preceding form
C-c C-b	Interrupt pending evals
C-c C-n	Eval the ns form
C-c M-n	Switch repl to curent ns
C-c C-z	Switch to REPL buffer
C-c M-o	Clear REPL buffer
C-c C-k	Load current buffer
C-c C-l	Load current file
M-.	Jump to def of current symbol
M-,	Return to pre-jump position
M-Tab	Complete symbol at point

Clojure Editing

C-M-Space	Select form after cursor, repeat for multiple
C-Left	Pull closing paren one form back
C-Right	Push closing paren one form forward
C-M-Left	Pull opening paren one form back
C-M-Right	Push opening paren one form forward
ESC-Up	Cut to beginning of form and remove parens
ESC-Down	Cut to end of form and remove parens
M-h	Select current top-level form*
M-i	Jump to symbol in current buffer

*actually works with empty lines, not forms. But due to the way clojure is idiomatically written, this trick works well.

Handy commands (M-x)

cider	Open a new nRepl connection
cider-quit	Close nRepl
ack	Regex across your current project
make-directory	Create folder
dired	List and manage folders

Summary

You'll want to grab my config file off https://github.com/cmdrdats/emacs-ext . This sets everything up from a basic emacs 24 installation.

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Comments (1)

Jerry 09:55 20 Apr 2015

I've never learned emacs and thought this would help me. But it looks to me, as a beginner, that some things are missing. How do I close a file without saving? How do I exit emacs? How do I save a file? Can I have multiple files open? How do I compile programs? I'm not sure what all could be added to this. I'm not qualified to critique or even suggest. But it just felt like a few more commands might help someone who's trying to learn emacs.