1、Vim
Vim is a powerful full-screen text editor is Linux / UNIX on the most commonly used text editor, its role is to create, edit, display text files.
Vim is no menu, only the command
2, Vim operating mode
3. Insert command
4, positioning commands
5. Delete command
6, cut and copy commands
7, replace and cancel the command
8, search and search and replace command
9, save and exit the command
10, revoke the order
u undo the last action