[Raspberry Pi] vim editor

I. Background

vim is an upgraded version of vi. Everyone says that using vim on Linux is very easy.

Second, installation steps

1. Delete the vi editor

sudo apt-get remove vim-common

2. Reinstall vim

sudo apt-get install vim

3. Personalization

Configure personalization in the /etc/vim/vimrc file.
Add the following:

sudo vim /etc/vim/vimrc

set nu #Display line numbersyntax on # syntax highlightingset tabstop=4 #tab back four spaces

Exit and save, and re-open to see the effect:

Three and three working modes

1. Insert mode: You can edit the file in this mode, press ESC to exit to command mode
2. Command mode: you can move the cursor and delete characters
3. Bottom line mode: you can save files and other file operations

Fourth, file operation commands

1. Open file vi filename
2. Save file :w
3. Quit editing (if the file is not modified) :q
4. Exit without saving :q!
5. Exit save :wq

V. Insertion operation

1. Add text a to the right of the current cursor position
2. Add text i to the left of the current cursor position
3. Add text A at the end of the current line
4. Add text at the beginning of the current line (a non-blank start of the line) I
5. Create a new line above the current line O
6. Create a new line below the current line o
7. Replace (overwrite) the current cursor position and some text behind it R
8. Merge the line where the cursor is and the next line (still in command mode) J

Six, delete, restore

1. Delete the current character x
2. Delete n characters from cursor nx
3. Delete the current line dd
4. Delete n lines down including the current line ndd
5. Undo the previous action u
6. Undo all operations on the current line U

Seven, copy and paste

1. Copy current line to buffer yy
2. Copy the current line down n lines to the buffer nyy
3. Copy the characters from the cursor to the end of the word yw
4. Copy n words starting from the cursor nyw
5. Copy from cursor to start of line y^
6. Copy from cursor to end of line y$
7. Paste the contents of the clipboard after the cursor p
8. Paste the contents of the clipboard before the cursor P

Eight, set the line number

1. Display line number set nu
2. Suppress line numbers set nonu