TAILIEUCHUNG - Learning the vi Editor - 6th Edition

Learning the vi Editor is a complete guide to text editing with vi. Topics new to the sixth edition include multiscreen editing and coverage of four viclones: vim, elvis, nvi, and vile and their enhancements to vi, such as multi-window editing, GUI interfaces, extended regular expressions, and enhancements for programmers. A new appendix describes vi's place in the Unix and Internet cultures. Quickly learn the basics of editing, cursor movement, and global search and replacement. Then take advantage of the more subtle power of vi. Extend your editing skills by learning to use ex, a powerful line editor, from within vi | Simpo PDF Merge and Split Unregistered Version - http Simpo PDF Merge and Split Unregistered Version - http Chapter 1. The vi Text Editor UNIX has a number of editors that can process the contents of text files whether those files contain data source code or sentences. There are line editors such as ed and ex which display a line of the file on the screen and there are screen editors such as vi and emacs which display a part of the file on your terminal screen. Text editors based on the X Window System are also commonly available and are becoming increasing popular. Both GNU emacs and its derivative xemacs provide multiple X windows an interesting alternative is the sam editor from Bell Labs. All but one of the vi clones described in Part II of this book also provide X-based interfaces. vi is the most useful standard text editor on your system. vi is short for visual editor and is pronounced vee-eye. Unlike emacs it is available in nearly identical form on almost every UNIX system thus providing a kind of text-editing lingua franca. 1 The same might be said of ed and ex but screen editors are generally much easier to use. With a screen editor you can scroll the page move the cursor delete lines insert characters and more while seeing the results of your edits as you make them. Screen editors are very popular since they allow you to make changes as you read through a file like you would edit a printed copy only faster. 1 Actually these days GNU emacs is pretty much the universal version of emacs the only problem is it doesn t come standard with most commercial UNIX systems you must retrieve and install it yourself. To many beginners vi looks unintuitive and cumbersome instead of using special control keys for word processing functions and just letting you type normally it uses all of the regular keyboard keys for issuing commands. When the keyboard keys are issuing commands vi is said to be in command mode. You must be in a special

• Hệ điều hành
• Unix systems
• text editing
• Basic editing
• Customizing vi
• Command shortcuts
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• Lesson Unix overview
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