Linux Learning---vi/vim (1. Basic knowledge)

VI and VIM have always been talked about, in the end what makes them so popular?

VI is divided into 3 modes: General mode, edit mode, command line mode.

(1) General mode:

After entering VI, the default is the general mode.

Useful: Easily move cursor, delete character/whole line, copy, paste.

Here are some common commands:

Method	Explain	Example
num + arrow keys	Repeat direction key num times	20↑ is moving up 20 times.
num + Space Key	Move num characters distance to the right	10<space> move 10 bits to the right.
0 or home key	To the very front of the current line.
$ or END key	Go to the last side of the line now.
G	Move to the last row
num + G	Move to Page Num.	10G means move to line tenth
Gg	Move to the first row
num + ENTER	Move num lines down	10<enter>, move down 10 lines.
/word	Look down for Word this string	/kaima means looking down Kaima this string
？ Word	Look up word for this string	？ Kaima means looking up Kaima this string
: n1,n2s/word1/word2/g	Find word1 between N1 and N2 rows and replace with Word2	10,20s/kaima/good/g find Kaima in the 10th to 20th row and replace it with good
: 1, $s/word1/word2/g	Find word1 from the first line to the last row and replace with Word2	: 1, $s/kaima/good/g
num + x	Continuous deletion of num characters	10x means delete 10 characters in a row
Dd	Delete the current entire row
Yy	Copy the current entire row
P, p	P is pasted on the next line, p is pasted on the previous line
U	Undo a previous action
[Ctrl] + R	Repeat the last action

(ii) editing mode

Useful: Edit the content.

I,i	I insert from the cursor, I insert from the first non-empty character of the current line prompt
A,a	A prompt inserted from the next word of the cursor, a prompt inserted from the last word in the current line
O,o	o Insert a new line below the current line, o insert a new row on the current line
R,r	R replaces only the current character, R always replaces the character indicated by the cursor (ESC stop)

(c) command-line mode

Useful: Save, leave, modify settings.

: W	Save File
: Q	Leave VI
: Wq	Leave after saving

Plus! To have a compulsive meaning, such as: w! Represents a forced save, even if the file is read-only.

These are just a few common commands, to meet the daily use, but this is not all, http://www.cnblogs.com/88999660/articles/1581524.html this article is a comprehensive list of the VI command, you can refer to.

Linux Learning---vi/vim (1. Basic knowledge)