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VI editor common commands

2022-07-22 06:51:00 【I am often autistic】

vi Editor as Linux The most widely used text editor under , It is almost used in our daily work vi Editor .
vi The editor has three modes of operation ： Command mode 、 Insertion mode 、 Last row mode .

1、 Command mode （command mode）— Carry out orders 　　
In this mode , You can enter commands to perform many functions . Control the movement of the screen cursor , character 、 The deletion of words or lines , Move to copy a section and enter Insert mode Next , Or to last line mode.

2、 The input mode （Insert mode）— Input text 　
vi When running , Usually in command mode , Type the following command You can make vi Exit command mode , Enter input mode ：I（i）、A（a）、O（o）.

3、 Last row mode （last line mode）— Execute pending command 　
Save or exit a file vi, You can also set the editing environment , Like looking for Strings 、 List line numbers …… etc. . But we usually use vi Simplify it into two patterns , Is to put the last line mode （last line mode） It's also in command line mode command mode）.

Switching of three modes ：
Insert picture description here
Command mode <-------> Insertion mode
We use vi Open a file , The default mode is command mode , type ’a’ or ’i’ It goes into insert mode , Press... In insert mode Esc Key returns to the command mode .
Command mode <-------> Last row mode
Type ’:’ You can enter the last line mode , Press... In last line mode Esc Key returns to the command mode .
Insertion mode <==> Last row mode
In insert mode, you want to enter the last line mode , Press first Esc Key to enter command mode , Retype ’:’ You can enter the last line mode
In the last line mode, you want to enter the insert mode , Press first Esc Key to enter command mode , Retype ’a’ or ’i’ It goes into insert mode

Command mode ：

Operation command effect
i Enter insertion mode
a Move the cursor to the right of the current position , And enter insertion mode
o Add a new line next to the line where the cursor is located , And enter insertion mode
O Add a new line on the line where the cursor is located , And enter insertion mode
I Position the cursor at the beginning of the line , And enter insertion mode
A Position the cursor at the end of the line , And enter insertion mode
u Undo the last operation
U Undo all operations
dd Delete line with cursor
ndd(n Representation number ) The first line of the cursor line , Delete n That's ok
x Delete the character where the cursor is
~ Change the case of the current cursor character ( Capitalize to lowercase , Lowercase to uppercase )
dw Delete all characters from the current character to the end of the word
yy Copy the current cursor line
nyy Copy ｎ That's ok ( Below the current cursor n That's ok )
yw Copy the cursor position to the end of the word ( Do not include spaces ) Content to vi Buffer zone , It's equivalent to copying a word
nyw Copy n Word
l( Lowercase L) The cursor moves right
nl The cursor moves right n Characters
h The cursor moves left
nh The cursor moves left n Characters
j The cursor moves down
nj The cursor moves down n Characters
k The cursor moves up
nk The cursor moves up n Characters
G Move the cursor to the end of the file
gg Move the cursor to the beginning of the file
w Move the cursor to the beginning of the next word
e Move the cursor to the end of the current or next word
b Move the cursor to the beginning of the current or next word
0( Numbers 0) Move cursor to the beginning of line
$ Move the cursor to the end of the line
n+ Move the cursor down n That's ok
n- Move the cursor up n That's ok
nG Position the cursor to the second n The beginning of a row
n$ Move the cursor down n Line and place at the end of the line
H Move the cursor to the top line of the screen
L Move the cursor to the bottom line of the screen
M Move the cursor to the middle line of the current screen
u Undo the last operation
U Undo all operations

Last row mode ：

Operation command effect
：w Save the file
：q sign out vi Editor
：q! Forced exit vi Editor （ Do not save ）
：set number According to the line Numbers
：set nonumber Cancel line number display
：set readonly Set file read-only
：s/old/new Replace the first string in a line old For the new string new
：s/old/new/g Replace all strings in one line old For the new string new
：m,ns/old/new/g use new Replacement section m To the first n All right old
：%s/old/new/g use new Replace all old
：m,nd Delete the first m To n The content of the line
：m,ny Copy No m Go to the first place n The content of the line
：n Move the cursor to n That's ok
：wq Save file and exit vi Editor
：w filename Save specified file
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