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Chapter 23. The vi Editor

vi is the classic screen-editing program for Unix. A number of enhanced versions exist, including nvi, vim, vile, and elvis. On Mac OS X Panther, the vi command is linked to vim. The Emacs editor, covered in Chapter 24, has several vi modes that allow you to use the same commands covered in this chapter.

The vi editor operates in two modes, command mode and insert mode. The dual mode makes vi an attractive editor for users who separate text entry from editing. For users who edit as they type, Emacs modeless editing can be more comfortable.


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