What linux needs to learn first is the basic knowledge of linux. You can't get started until you have learned the basics. After that, we need to learn about comprehensive architecture, Shell programming, database, cloud computing, network security and so on. Here's what you need to learn about the basics of Linux:

1. Computer hardware, composition principle, operating system foundation, Linux origin, core introduction, and practical introduction of Linux installation.

2.Xshell remote network connection to Linux, basic optimization, remote connection network foundation, troubleshooting Xshell connection, and explanation of core basic commands.

3. Elaborated the core wildcard system of Linux system, the core regular expressions of grep, sed and awk, and the actual combat simulation of enterprise-level cases.

4. Detailed explanation of 4.bash core symbols, shortcut keys and wildcards.

5.Linux directory, FHS\ mount, file properties and core directory.

6.Linux file and directory management core knowledge and commands (Level 2)

7.Linux enterprise-level basic optimization (can be directly used at work)

8.Linux file and directory permissions and multiple enterprise case simulations.

9. Review and deeply explain important Linux kernel commands (Level 3)