Linux command explanation-text editor

1. VI Editor

Three modes:

Command mode

VI filename

(1.) Positioning:

H: Move one character to the left J: Move down one character K: move one character up L: Move right one character $: moves to end of line 0: moves to the beginning of lines Enter: Move to the start of the row H: Move to the top of the screen M: Move to the screen terminal L: Move to the bottom of the screen

G: To the last line of the file 1G: to the first line of the file NG: to the nth line of the file, equivalent to: n

(2.) Delete command:

X: Delete the character of the cursor, delete it backwards, equivalent to the BACKSPACE key X: Delete the character in front of the cursor, equivalent to the DELETE key DD: Delete the line where the cursor is located DG: Delete the line to the end of the cursor D: Delete the cursor at the bottom of the line: n1,n2d Delete section n1- N2 the contents of the line

(3.) Copy command:

YY: Copy current line equal to Y nyy,ny copy current line following n line p: Paste

(4.) Replace and cancel

R: Replace the character at the cursor (single substitution) r: Replace the character from the cursor, press ESC to exit, end replace (continuous substitution) s: replace the character at the cursor, and enter the text input method (delete the current character and enter insert mode) s: Replace the full line of the cursor, press ESC to end (delete the entire row, and go into insert mode) U: Cancel the previous action, Cancel to the point where the file was last opened, not the place to save. Press Ctr+r to cancel U: Cancels all operations on the current line

(5.) Save and exit

: W Save: W newfile Save as: Wq Save exit: Q Exit ZZ exit: q! Force exit: X Save exit: x! Force Save exit

(6.) Search and replace

Slash search:/string n search down n Search question mark search:? String substitution::%s/old/new/g All find replace search to delete all::%s/old//g

(7) Other operations

: R FileName reads the file into another file:! Command not to exit VI, to perform other operations to open more than one file: Vi–o file1 file2 (Up/Down window) Press CTR+WW two window switch vi–o file1 file2 about two windows open file

Insert mode

Input I: Insert before cursor I: Insert a at the beginning of the cursor: Insert a: At the end of the line insert O: Insert a new line under the cursor o: Insert a line on the cursor press ESC to enter command mode

Edit mode

Press Colon to enter edit mode from command mode and press ENTER to enter command mode again. Eg:setnu

When exiting VI: Command mode, press ZZ to exit: Q

Set line number: Set Nu Cancel line number: Set Nonu config file: Home directory VI vimc write set Nu

VI A text editor, when two users edit a file at the same time, with the last user's save as the subject.

Linux command explanation-text editor