VI Common Directive VI Full Screen Editor VI (Visual) is a common-oriented full-screen editor, divided into three modes: Command mode: Any input will be an editing command, without appearing on the screen On, if you enter an error, there is a sound of ""; any input causes immediate reflection insert mode: [Any input data is placed in the editing register. Enter (I, A, A, etc.) in the Command mode, you can enter the insert mode, in Insert mode, press ESC, you can jump back to the Command mode. ESCAPE mode: With ":" or "/" as a preamble, the last line of the screen appears, and any input is regarded as a special instruction. Enter VI (enter the following instructions under the system prompt): VI Old files can be available). Vi n filename entered VI and starting with the first few lines of the document. Vi filename enters VI and starts by the last line of the file. Vi / Word filename enters VI and starts with the word word by the file. Vi filename (s) entered VI and included each specified file in the list, the first file read. VEDIT Enter VI and display "INSERT MODE" in the status line when entering mode. Delete instructions NX slam N-character (excluding cursor position) of the cursor position. NDW . D0 . D $ or D NDD . : start, Endd Deleting the START to END line of the file.