Emacs introduction

发布: 2007-7-04 12:06 | 作者: admin | 来源: 　网友评论 | 查看: 11次 | 进入软件测试论坛讨论

Introduction

Emacs is a powerful text editor. Especially suited for programming, it uses intensively the keyboard shortcuts.This page is a short summary of the most used shortcuts in Emacs. If you are configuring your Linux, you will appreciate thatEmacs also works in text mode.

File access

Ctrl-x Ctrl-f: Open file
Ctrl-x Ctrl-s: Save

Buffer control

Ctrl-x k: Kill buffer (close file)
Ctrl-x b: Switch to an other buffer
Ctrl-x 2: Split the window vertically to see an extra buffer
Ctrl-x 3: Split the window horizontally to see an extra buffer
Ctrl-x 0: Hide the current window
Ctrl-x 1: Show only the current window
Ctrl-x o: Jump to an other window

Text editing

Ctrl-Space: Marks beginning of a block
Alt-w: Marks end of block and copy
Ctrl-w: Marks end of block and cut
Ctrl-y: Paste
Ctrl-a: Go to the beginning of the line
Ctrl-e: Go to the end of the line
Ctrl-k: Kill end of line (after the cursor)

General

Ctrl-g: Cancel the command you are typing
Ctrl-x Ctrl-c: Quit emacs
Ctrl-_: Undo
TAB: Automatic indentation (source code) while editing
TAB: Automatic completion while selecting a file or while typing a commandin the mini-buffer
Alt-x: Type a command in the mini-buffer
Alt-x c-mode: Change major mode to c-mode
Alt-x global-font-lock-mode: Switch the 'global font lock mode' (highlights syntax)

Search and replace

Ctrl-s: Incremental forward search (press Ctrl-s again to search further)
Ctrl-r: Incremental backward search (press Ctrl-r again to search further)
Alt-%: Search and replace

Multiple files search

Simple search

Alt-x grep: Perform a 'grep' search
Alt-x grep-find: Perform a search using 'find' and 'grep'

Tags (for programmers)

find . -name "*.[ch]" | etags -: Make a TAGS index file for every file whose name ends with'.c' or '.h', starting from the current directory (this is a shellcommand !)
Alt-x visit-tags-table: Load a TAGS file
Alt-.: Find a tag
Ctrl-u Alt-.: continue find tag
tags-search: Search through all files listed in the tags table
tags-query-replace: Search and replace through all files listed in the tags table
Alt-,: continue last tag search

Files comparison

Alt-x ediff: Compares two files

Spell check

Alt-x ispell-buffer: Spell check for the current buffer

Help

Ctrl-h ?: General help functions
Ctrl-h f: Describe the command you type
Ctrl-h a: apropos ... help based on a keyword
Ctrl-h m: Help on the current major mode