# Emacs 常用快捷键总结 | Keyboard shortcuts | Effects | | --- | --- | | `emacs -nw -Q` | 不安装任何插件在命令行打开 Emacs | | `C-v` | forward one screen | | `M-v` | backwards one screen | | `C-l` | text around cursor to center of screen | | `M-x help-with-tutorial` | 打开教程 | | `C-x C-c` | end Emacs session | ### Basic Cursor Control {#basic-cursor-control} | Keyboard shortcuts | Effects | | --- | --- | | `C-p` | previous 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 whole text | | `M->` | end of whole text | | `C-u num command` | run command, use num as repeat-count; 注意 `C-u 6 C-v` 与其他命令的不同 | | `C-g` | quit a partially entered command; 退出没有响应的命令 | | `C-x 1` | kill all other windows | 如果遇到暂时禁止执行的命令，按下 `n` 取消执行。 ### Inserting and Deleting {#inserting-and-deleting} | Keyboard shortcuts | Effects | | --- | --- | | `<DEL>` `BackSpace` | delete character before current cursor | | `M-<DEL>` | kill word before cursor | | `C-d` | delete next character after cursor | | `M-d` | kill next word after cursor | | `C-k` | kill from cursor to end of line | | `M-k` | kill from cursor to end of current sentence | | `C-e` | move to end of line | | `M-e` | move forward to end of sentence | | `C-<SPC>(<SPC>=space) move-cursor-to-somewhere C-w C-y` | kill random text, then yank to somewhere(like cut and paste) | `killing` 和 `deleting` 的区别： - `killed` text can be reinserted (at any position) - `deleted` things cannot be reinserted in this way, but you can undo a deletion Reinsertion of killed text is called "yanking". ### Undo {#undo} | Keyboard shortcuts | Effects | | --- | --- | | `C-/` | undo a change to text(`C-/` 不会撤销光标移动命令，滑动命令) | For `C-/` Self-inserting characters are usually handled in group of up to 20. Normally, C-/ undoes the changes made by one command; if you repeat C-/ several times in a row, each repetition undoes one more command. ### Files {#files} | Keyboard shortcuts | Effects | | --- | --- | | `C-x C-f` | find a file | | `C-x C-s` | save the file | ### Buffers {#buffers} Emacs stores each file's text inside an object called a "buffer". | Keyboard shortcuts | Effects | | --- | --- | | `C-x C-b` | List buffers | | `C-x b <BUFFER NAME>` | switch buffer | | `C-x b Messages` | see the messages | ### Extending the command set {#extending-the-command-set} 指的是两种行为：C-x，M-x。 | Keyboard shortcuts | Effects | | --- | --- | | `C-x <one character>` | Character eXtend | | `M-x <a long name>` | Named command eXtend | | `C-z` | exit Emacs **temporarily** | | `fg` or `%emacs=(exec in console)` | recover from `C-z` | ### Auto save {#auto-save} `#example.md#` ，这是一个自动保存的备份文件。 ### Echo area {#echo-area} ### Mode line {#mode-line} -:**-- TUTORIAL 63% L736 (Fundamental)-------- - `63%` 表示当前文档的进度。如果来到文档底部会显示 Bot,来到文档顶部会显示 Top。 - `(Fundamental)` 则是指编辑模式， Major mode Minor mode ### Searching {#searching} | Keyboard shortcuts | Effects | | --- | --- | | `C-s` | start search **after** cursor | | `C-r` | start search **before** cursor | ### Multiple windows {#multiple-windows} | Keyboard shortcuts | Effects | | --- | --- | | `C-x 2` | create one more window(top+bottom) | | `C-x 3` | create one more window(left+right) | | `C-x o` | switch to other windows(one by one) | ### Multiple frames {#multiple-frames} | Keyboard shortcuts | Effects | | --- | --- | | `C-x 5 2` | new frame | ### Recursive editing levels {#recursive-editing-levels} [(Fundamental)] ### Get help {#get-help} | Keyboard shortcuts | Effects | | --- | --- | | `C-h c C-p` | oneline explanation | | `C-h k C-p` | explanation with more details | | `C-h f <function name>` | describe a function | | `C-h v <variable name>` | describe a variable | | `C-h r` | read manual |