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This article mainly shows you "linux how to use the Vi/Vim editor", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "linux how to use the Vi/Vim editor" this article.

The VI editor is a powerful command-line-based text editor that was first developed for Unix systems and later migrated to many Unix and Linux distributions.

There is also another advanced version of the VI editor on Linux-VIM (also known as VI IMproved). VIM just adds more features to the already powerful features of VI, such as:

Support for more Linux distributions

Support for code block folding and syntax highlighting in a variety of programming languages, including python, C++, perl, etc.

Support for editing files through a variety of network protocols, including http, ssh, etc.

Support for editing files in compressed archives

Multiple files can be edited on separate screens at the same time.

Next we will discuss the commands and options for VI/VIM. In this article, for teaching purposes, we use VI as an example, but all commands can be used for VIM. First, let's introduce two modes of the VI editor.

Command mode

In command mode, we can perform tasks such as saving files, running commands within VI, copy / cut / paste operations, and find / replace. When we are in insert mode, we can press the Escape (Esc) key to return to command mode

Insert mode

In insert mode, we can type the contents of the file. Press I in command mode to enter insert mode.

Create a file

We can create a file with the following command (LCTT note: if the file exists, edit the existing file):

$vi filename

Once the file is created or opened, we first enter command mode, and we need to enter input mode to enter content in the file. We have a general understanding of these two models from the previous article.

Exit Vi

If you want to exit from insert mode, we first need to press Esc to enter command mode. Next, we can use two commands to exit Vi according to different needs.

Do not save exit-enter: Q! in command mode

Save and exit-enter: wq in command mode

Move the cursor

Let's discuss the commands and options for moving the cursor in command mode:

K move the cursor up one line

J move the cursor down one line

H move the cursor one letter to the left

L move the cursor one letter to the right

Note: if you want to move multiple lines up or down, or move multiple letters to the left or right with one command, you can use 4k or 5l, which will move 4 lines up or 5 letters to the right, respectively.

0 move the cursor to the beginning of the line

Move the cursor to the end of the line

NG moves the cursor to the nth line

G move the cursor to the * line of the file

{move the cursor to the previous paragraph

} move the cursor to the next segment

In addition, there are some commands that can be used to control the movement of the cursor, but the commands listed above should be able to meet the needs of daily work.

Edit text

This section lists some commands for command mode, and you can enter insert mode to edit the current file

I insert content before the current cursor position

I insert content at the beginning of the line where the cursor is located

An insert content after the current cursor position

An insert content at the end of the line where the cursor is located

O add a line after the current cursor line

O add a line before the current cursor line

Delete text

The following commands can only be used in command mode, so you first need to press Esc to enter command mode if you are in insert mode:

Dd deletes the entire line where the cursor is located. You can add numbers before dd. For example, 2dd can delete two lines starting from the line where the cursor is located.

Delete from the position of the cursor to the end of the line

Delete from the cursor position to the beginning of the line

Dw deletes everything from the cursor position to the beginning of the next word

Copy and paste

Yy copies the current line, adding numbers before yy can copy multiple lines

P paste the copy line after the cursor

P paste the copy line before the cursor

These are all the contents of the article "how to use the Vi/Vim Editor by linux". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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