What to learn about Linux system

What to learn about Linux system?

What to learn about Linux application development

Linux learning is mostly based on commands, so it may feel boring or even confusing for beginners. You can complete it with just a few clicks of the mouse. Why do you have to bang so much? Here are two reasons, and you are welcome to add:

Due to resource considerations, most Linux servers do not have a graphical interface

The command line facilitates automation and writes a series of operations into scripts , can replace manual operation

And I divide its learning into several stages:

Recommended: "Linux Tutorial"

Basic use

Development and debugging

System understanding

These three stages have different requirements for knowledge accumulation, but in general there is no strict sequence divided.

Similar to windows, what did you learn when you were learning windows?

Switch the machine on or off?

Install and uninstall software? For example, install a video player or music player (why do you need to install this thing?).

How to open the installed software? For example, open a browser to surf the Internet, open an editor to write a document

How to store your own information? Move, create, delete, etc.

How to use office software

……

Do you think you haven’t bothered to learn it?

The same is true for learning Linux, which is to learn these most common uses,

How to turn on and off the computer

How to access the Internet

How to open commands Line

How to use the command line to install and uninstall software

How to edit text

How to create, move, and delete files

How to view file contents and decompress files

......

The most difficult thing at this stage is the conversion from the graphical interface to the command line.

So in the second stage, you need to learn:

How to write Linux applications

How to compile or build your program

How to run your Program

How to locate program bugs

The third stage is a long learning process, but it is all for development, including:

Understand and practice Everything is a file

ELF file, the main executable file format of Linux

The basic principles of Linux’s major mechanisms, such as process scheduling, memory management, virtual memory, file system, etc. Since you want to write Linux How can an application not understand the main mechanisms of the platform it is on?

The more difficult the problem, the more basic knowledge is needed.

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