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Emacs

GNU Emacs was originally implemented in 1976 on the MIT AI Lab's Incompatible Timesharing System (ITS), as a collection of TECO macros. The name “Emacs” was originally chosen as an abbreviation of 'Editor MACroS'. This version of Emacs, GNU Emacs, was originally written in 1984 in Lisp under GPL license.

Shell

M-x shell
M-x eshell

Compile

M-x compile

Debug

M-x gdb

Grep

M-x grep

Man

M-x man

Diff

M-x ediff

FIle manager

M-x dired

Read news, mail and feeds

M-x gnus

Games

M-x doctor
M-x tetris
M-x snake
M-x 5x5
M-x blackbox
M-x decipher
M-x dissociated-press
M-x dunnet
M-x hanoi
M-x landmark
M-x life
M-x morse-region
M-x mpuz
M-x pong
M-x snake
M-x solitaire
M-x studlify-region
M-x zone

IRC

M-x irc

Invoking shell commands

M-x shell-command or M-!

Tools

M-x calculator
M-x calendar
M-x phases-of-moon

Version control

M-x vc-next-action or C-x v v

Help

C-h t
C-h r
C-h C-f

Moving in buffers

Key Meaning
C-f Forward one character
C-n Next line
C-b Back one character
C-p Previous line
C-a Beginning of line
M-f Forward one word
M-a Previous sentence
M-v Previous screen
M-< Beginning of buffer
C-e End of line
M-b Back one word
M-e Next sentence
C-v Next screen
M-> End of buffer
C-u 3 C-p Back 3 lines
C-u 10 C-f Forward 10 characters
M-1 M-0 C-f Forward 10 characters
C-u C-n Forward 4 lines
C-u C-u C-n Forward 16 lines
C-u C-u C-u C-n Forward 64 lines
M-g g Jump to specified line
C-s Incremental search forward
C-r Incremental search backward

Mark

Key Meaning
C-SPC Set mark to the current location
C-x C-x Swap point and mark
C-u C-SPC Cycle through mark ring

Region

Key Meaning
C-x h Make region contain the entire buffer ('Select all')
M-h Make region contain the current paragraph
C-x n n Narrow buffer to the current region
C-x n w Restore ('widen') buffer

Killing ('cutting') text

Key Meaning
C-k Kill line
C-u 10 C-k Kill 10 lines
C-w Kill region ('cut')
M-w Save region to kill ring without deleting ('copy')
M-d Kill next word
M-k Kill to end of sentence

Yanking ('pasting') text

Key Meaning
C-y ! Yanks last killed text
M-y Replace yanked text with previously killed text

Undo

Key Meaning
C-/ Undo
C-_ Undo
C-x u Undo

Incremental search

Key Meaning
C-s Incremental search
C-s C-s Search for most recently searched item
C-s M-p Previous item in search history
C-s M-n Next item in search history
C-h k C-s Guide to more commands available in incremental search
C-r Backward incremental search

Search and replacement

Key Meaning
M-% Query replace

Add symbols

Key Meaning
C-x 8 C-h Help to add symbols

Regular expression search

Key Meaning
C-M-s Regular expression incremental search

Keyboard Macros

Key Meaning
F3 Start recording macro
F4 Stop recording macro
F4 Play back macro once
M-5 F4 Play back macro 5 times
M-0 F4 Play back macro over and over until it fails

My ~/.emacs.d/init.el

;;; Emacs is free software: you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation, either version 3 of the License, or
;;; (at your option) any later version.
;;;
;;; Emacs is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Emacs.  If not, see <http://www.gnu.org/licenses/>.
;;;
;;; Emacs --- Emacs config
;;; Copyright 2000-2018 Daniel Pimentel <d4n1@d4n1.org>
;;;
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Emacs.  If not, see <http://www.gnu.org/licenses/>.

(package-initialize)

;; custom
(custom-set-variables
 '(inhibit-startup-screen t)
 '(tool-bar-mode nil)
 '(custom-enabled-themes (quote (wombat)))
 '(horizontal-scroll-bar-mode nil)
 '(scroll-bar-mode nil)
 '(column-number-mode t)
 )
(custom-set-faces
 '(cursor ((t (:background "red"))))
 )

;; melpa
(add-to-list 'package-archives
             '("melpa-stable" . "https://stable.melpa.org/packages/") t)

;; org-mode
(global-set-key "\C-cl" 'org-store-link)
(global-set-key "\C-ca" 'org-agenda)
(global-set-key "\C-cc" 'org-capture)
(global-set-key "\C-cb" 'org-iswitchb)

GNU Emacs

© 2000-2018 by Daniel Pimentel (d4n1). Under MIT.