Usage of Vim

How to enter insert mode from command mode:

#A/a/o/o/i/i

I: Lowercase is the first letter in the position where the cursor is inserted

I: Uppercase is inserted at the beginning of the line where the cursor is located

A: Start inserting the next letter at the cursor position

A: Insert at the end of the line where the cursor is located

O: The next line where the cursor is located starts inserting

O: The previous row of the cursor line starts inserting

Whether small o or Big O is the cursor another line

Command mode:

X: Delete a single character

U: Delegate undo Undo

DD: Deletes the line where the cursor is located. ---this deletion is actually cut

3DD/D3D: The next three lines, including the cursor

YY: The copy cursor is in the row

P: You can copy and paste the content and paste it on the next line in the row where the cursor is located

Uppercase P: Paste on the previous line of the row where the cursor is located

Paste three lines 3yy/y3y: Copy three lines including the cursor.

GG: Switch to the beginning of the line immediately

G: Just switch to the end of the line immediately.

3g: Just switch the cursor to the third line immediately

R: means replacing one character

R: denotes infinite substitution character

Last-line mode:

: Set number either marks the line or is abbreviated as set Nu

: Set Nonumber

: W Write

: Q quit

: X

How to find in vim:

Like what:

/good----Find good, n switch to the next n switch to the previous,/search for something that is not clear highlighting

: 1,3s/good/guy/g 1-3 Line replace all found good into guy

: 1, $s/good/guy/g all lines replace good change to guy.

crtl-v/Capital V and lowercase v------visualization attempt, block-style Delete

VIMTUTOR--VIM Tutor Guide

P.S.

How to turn on Vim line number global display:

Vim/root/.vimrc

Set NU-----Turn on global file line number display

Or VIM/ETC/VIMRC, plus the following line.

Set Nu

Usage of Vim