Table of Contents

1. Emacs Configuration
   1. Initialization
   2. What's up with the zip file?
   3. .org files
   4. Keybindings
2. Common emacs commands for those who are new
   1. Simple definitions by example
   2. common commands
      1. movement commands
      2. file commands
      3. editing
      4. copy/paste
      5. macros
      6. programming
      7. window commands
      8. misc

Emacs Configuration

Tested with emacs version 26.3 in Debian 9 (windows subshell) & 10

Initialization

Just clone this file in your home directory (~)

Emacs automatically looks for a file on the path ~/.emacs.d/init.el on startup

The init file is also setup to load in any files from the custom_elisp folder as well as the custom.el file

Don't edit the custom.el file, it's automatically generated

What's up with the zip file?

It's a backup, you can unzip it to make sure you have the same elpa directory used in testing, or you can just leave it alone/delete it

If you don't unzip the file, the elpa folder should automatically regenerate the first time you run emacs

.org files

These are used to manage the README (this file)

tangle: C-c C-v C-t export: C-c C-e

Keybindings

All custom keybindings can be found in the init.el file.

Common emacs commands for those who are new

Simple definitions by example

M stands for "Meta" and by default is the alt key
C stands for "Control" and is default the control key

"Buffer" is the open text area, it's not called a window since you can split your screen into multiple buffers

C-f          Means hold Ctrl and press f
M-p          Means hold alt (meta) and press p
C-x f        Means hold Ctrl and press x, release Ctrl and press f
C-x C-c      Means hold Ctrl and press x, keep Ctrl down andpress c
C-M-e        Region is the word for selection
M-% or M-S-5 Means alt + shift + 5

common commands

movement commands

C-f move one character forwards
M-f move one word foreward
C-b move one character backwards
M-b move one word backwards

C-p move to previous line
C-n move to next line
C-a move to start of line
C-e move to end of line

M-< move to the beginning of the buffer
M-> move to end of buffer

C-v page down
M-v page up
C-l center page on cursor (multiple clicks move it to top/bottom instead of center)

M-^ move current line and append it to the prior line, removing all whitespace and adding back in a single space

C-F1 remember position in code (all function keys)
F1   return to position in code

file commands

C-x C-s save current buffer
C-x C-w save to new file
C-x C-f find file
C-x C-c quit emacs

editing

M-[n] repeat command [n] times
C-u [n] repeat the next command [n] times
C-t transpose two characters
M-t transpose two words
C-x C-t transpose two lines
M-u uppercase letters from cursor to end of line
M-l opposte of M-u
M-c make first letter in word uppercase

copy/paste

C-k kill-line: delete the rest of the current line
C-@ set-mark-command: mark is used to indicate the beginning of an area of text to be yanked
C-w kill-region: delete the area of text between the mark and the current cursor position
C-y yank: insert at current cursor location whatever was most recently deleted
M-y yank-pop: cycle through your kill ring after yank
M-w copy-region-as-kill: copy area between mark and cursor into kill-buffer so that it can be yanked into someplace else (doesn't delete)
C-d delete character forward
M-d delete word forward
M-Del delete word backwards

macros

C-x ( start macro definition
C-x ) end of macro definition
C-x e execute last definied macro
C-x e execute last defined macro (can combine with C-u [n] or M-[n])
M-x name-last-kbd-macro give name to macro (for saving)
M-x insert-keyboard-macro save named macro into file
M-x load-file load macro
M-x macroname execute macroname

programming

M C-\ indent region between cursor and mark
M-m move to first (non-space) char in this line
M-^ attach this line to previous
M-; formatize and indent comment
C-c C-c comment out marked area. 

M-x outline-minor-mode collapses function definitions in a file to a mere {...}
M-x show-subtree If you are in one of the collapsed functions, this un-collapses it In order to achive some of the feats coming up now you have to run etags *.c *.h *.cpp (or what ever ending you source files have) in the source directory
M-. If you are in a function call, this will take you to it's definition
M-x tags-search ENTER Searches through all you etaged
M-, jumps to the next occurrence for tags-search
M-x tags-query-replace yum. This lets you replace some text in all the tagged files

window commands

C-x 3 split window vertically
C-x 2 split window horizontally
C-x 1 kill all windows except the current window
C-x 0 kill only the current window
C-x o move to next window

misc

C-g keyboard-quit: if while typing a command you make a mistake and want to stop, this aborts a command in progress