[Emacs] Key Sequence and Describe

備忘，查詢用。

主要是整理自以前中研院的一份 pdf 檔，不過，現在好像 google 不到了？

Chapter 2 Emacs on-line help
2.3 Ctrl-h Prefix
C-h c	describe-key-briefly
C-h k	describe-key
C-h w	where-is
C-h a	apropos-command
C-h v	describe-variable
C-h i	info
Chapter 4 About the Emacs
4.2 Exiting Emacs
C-x C-c	save-buffers-kill-emacs
4.4 Buffers and Windows
M-x recovery-file	'recovery-file'
C-h v	describe-variable
M-x set-variable	'set-variable'
C-x b	switch-to-buffer
C-x k	'kill-buffer'
C-x C-b	list-buffers
M-x buffer-menu	'buffer-menu'
C-x 0	delete-window
C-x 1	delete-other-windows
C-x 2	split-window-vertically
C-x 3	split-window-horizontally
C-x o	other-window
C-x ^	enlarge-window
C-x }	enlarge-window-horizontally
C-l	recenter
Chapter 5 Basic Emacs Editing Commands
5.1 Loading/Saving File
M-x	execute-extended-command
C-x C-f	find-file
C-x i	insert-file
M-x pwd	'pwd'
C-x C-s	save-buffer
C-x C-w	write-file
C-x s	save-some-buffers
5.2 Emacs Basic Editing Command
M-x overwrite-mode	'overwrite-mode'
C-q	quoted-insert
C-j	newline-and-indent
C-f	forward-char
C-b	backward-char
M-f	forward-word
M-b	backward-word
C-a	move-beginning-of-line
C-e	move-end-of-line
C-n	next-line
C-p	previous-line
C-v	scroll-up
M-v	scroll-down
C-x <	scroll-left
C-x >	scroll-right
M-<	beginning-of-buffer
M->	end-of-buffer
C-x [	backward-page
C-x ]	forward-page
C-x C-p	mark-page
M-x goto-char	'goto-char'
M-x goto-line	'goto-line'
C-u	universal-argument
M-x what-page	'what-page'
C-x l	count-lines-page
M-x what-line	'what-line'
C-x =	what-cursor-position
M-=	count-lines-region
M-x line-number-mode	'line-number-mode'
C-x u	advertised-undo
C-d / <del>	delete-char
DEL /	delete-backward-char
M-\	delete-horizontal-space
M-SPC	just-one-space
M-d	kill-word
M-DEL	backward-kill-word
C-k	kill-line
C-x C-o	delete-blank-lines
5.3 Yanking
C-y	yank
M-y	yank-pop
5.4 Marking Text
C-@	set-mark-command
C-SPC	set-mark-command
C-x C-x	exchange-point-and-mark
C-x C-p	mark-page
C-w	kill-region
C-x r s	copy-to-register
C-x C-l	downcase-region
C-x C-u	upcase-region
5.5 Moving Text and Copying Text
C-x k	kill-buffer
M-w	kill-ring-save
C-x r d	delete-rectangle
C-x r k	kill-rectangle
C-x r y	yank-rectangle
C-x r o	open-rectangle
M-x clear-rectangle	'clear-rectangle'
M-x string-rectangle	'string-rectangle'
5.6 Undoing Change
C-x u	advertised-undo
C-/	undo
C-_	undo
Chapter 6 Advanced Emacs Editing Commands
6.1 Searching Text
C-s	isearch-forward
C-r	isearch-backward
C-g	keyboard-quit
C-M-s / C-s	isearch-forward-regexp
C-M-r / C-r	isearch-backward-regexp
6.2 Replacing Text
M-x replace-string	'replace-string'
M-x replace-regexp	'replace-regexp'
M-x query-replace	'query-replace'
M-x query-replace-regexp	'query-replace-regexp'
6.3 Regular Expression
.	代表除了newline外的任一個字元
*	字元重複的次數，從0次到無限多次
+	字元重複的次數，從1次到無限多次
?	字元重複的次數，不是0次就是1次
[...]	字集
[^...]	^出現在字集的第一個字元，表示以下皆非的意思
[.-.]	簡化範圍性的字集的表示法
^	表示列首
$	表示列尾
\	跳脫字元
\|	表示選擇的用法
\(...\)	將範圍規範出來，並置入緩衝區
\d	d表數字。把緩衝區的內容取出來
\<	尋找word的開頭
\>	尋找word的結尾