Summary of new usage of vi (vim) under Linux

I have used the vi editor for several years, but I have never used some practical uses. After listening to the introduction of Linux in the python video today, I still learned a few new tricks.

1. :set nu displays line numbers

2. gg--------to the beginning of the file

3.G--------To the end of the file

4.u---------Undo operation

5.Ctrl+r-----Redo

6.:/better, press Enter to search for words matching better, press n to search for the next one

7.:s/better/dog, press Enter to replace the first "better" in this line with "dog"

:s/better/dog, press Enter to replace all better in this line with dog

:%s/better/dog Enter, replace all better in this file with dog

8. vi -O2 file1 file2

Use one screen to display both file1 and file2 for easy editing. Press ctrl+w to switch from one file window to another.

Expanded content

Common Linux commands

- Learned

cd (change the path) rm (followed by -rf to delete a file or folder) ls (view the files and folders in the current path) mkdir (create a folder) touch (create a file)
cat (view file contents) mv (move files, you can also rename files) rmdir (delete empty folders) whoami (view current user) pwd (view current path)
- / # The root directory of Linux system has no drive letter, only the root directory /.
- cd #directory jump
- cp # copy file cp <file in current folder> <destination folder>/ <file name>
# Copy folder cp -rf <folder> <destination folder>
- find # Find files find /(path) -name '*.py'
find /(path) -size 1024 (+1024 is greater than 1024; -1024 is less than 1024)
sudo find ........ # sudo obtains permissions

Vim commonly used commands

Cursor positioning;

hjkl move up, down, left, and right

0 $ Jump to the beginning or end of the line

gg shift+G jumps to the beginning or end of the entire file

1G, 2G, 3G........NG, jump to the beginning of line 1.2.3 N

/String(n N can be looped) quickly locate a certain line,

/^d quickly locates the line starting with d,

/txt$ quickly locates the line ending with txt.

Text editing (small amount)

y copy. yy 3yy ygg yG (in lines)

d delete dd 3dd dgg dG (in lines)

p Paste

x Delete the character where the cursor is

D Delete from cursor to end of line

u undo

^r redo Undo, redoCtrl + r

r Modify a character

Enter other modes

a Enter insert mode, insert after the cursor

i Enter insert mode, insert before the cursor

o Insert into a new line

A shift + A insert at the end of the current line

: Enter last line mode (extended command mode)

v Enter visual mode

^v Enter visual block mode Ctrl + v

V Enter Visual Line Mode

R Enter replace mode and perform batch replacement after the cursor, similar to Insert for text on Windows

VIm keyword autocompletion in insert mode Ctrl + p / n

The above are all the knowledge points and extended content introduced this time. Thank you for your learning and support for 123WORDPRESS.COM.