blog/content/middleware/emacs.md

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title: "Emacs" date: 2023-10-11T14:10:48+07:00

draft: true

• C-v view previous page
• M-v view next page
• C-l Clear screen and redisplay all the text
• C-p Prev line
• C-n Next line
• C-b Backward a character
• C-f Forward a character
• M-b Backward a word
• M-f Forward a word
• C-a Beginning of line
• C-e End of line
• M-a Beginning of sentence
• M-e End of sentence
• M-< Beginning of the whole text
• M-> End of the whole text
• C-u 8 C-n Move to next 8th lines > C-u 8 C-v Move scrollbar by 8 lines > C-u 8 * Input ********
• C-g Stop a command / Cancel a numeric argument > C-u 100 C-g C-f Move forward only 1 word

Windows

• C-x 1 One window (kill all other windows)

Editing

• <DEL>(backspace) Delete the character before the cursor
• C-d Delete the next character after the cursor
• M-<Del> Kill the word immediately before the cursor
• M-d Kill the next word after the cursor
• C-k Kill from the cursor position to the end of line
• M-k Kill to the end of the current sentence
• C-<Space> Mark set
• C-w Kill text starting from C-<Space>
• C-y yank the last killed text back
• M-y repaces "last killed text" with the previous kill
• C-/ undo > C-_ the same. > C-x u the same

Files

• C-x C-f Find a file > Cancel the command with C-g
• C-x C-s Save the file

Buffers

• C-x C-f Switch between opened files
• C-x C-b List buffers
• C-x b Switch between buffers
• C-x s Save some buffers

Extending The Command Set

• C-x Character eXtend
• M-x Named command eXtend
• C-x C-c End the emacs session
• C-z Suspends emacs > fg %emacs to resume
• C-x u undo
• C-x f 20 set margin
• M-x Execute a command > M-x replace-string replace string > M-x recover-this-file recover current file > M-x fundamental-mode > M-x text-mode switch major mode
• M-q re-fill the paragraph

Searching

• C-s forward search
• C-r reverse search
• C-g quit searching

Windows

• C-x 2 split the screen into 2 windows
• C-M-v scroll the other window
• C-x o move cursor to the other window

Frames

• C-x 5 2 New frame
• C-x 5 0 Close frame

Help

• C-h ? All help > F1 or M-x help instead
• C-h m Current major mode document