What is Linux?

Linux is a set of free-to-use and freely disseminated Unix-like operating systems. It is a multi-user, multi-tasking, multi-threading and multi-CPU operating system. It can run major UNIX tools, applications and network protocols. It supports 32-bit and 64-bit hardware. Linux inherits the network-centric design idea of ​​Unix, and is a multi-user network operating system with stable performance. Simply put, Linux is an operating system. Unlike other operating systems, Linux is free, open source, reliable, safe, stable, and multi-platform. It is the preferred operating system for programmers in the world today. Linux not only has stable system performance, but also is open source software. Its core firewall components have high performance and simple configuration, ensuring the security of the system. In many enterprise networks, in order to pursue speed and security, Linux is not only used as a server by network operation and maintenance personnel, but even as a network firewall. This is a highlight of Linux.

How to learn Linux?

First, the foundation must be laid firmly . A tree that is hugged is born at the end of a millimeter; a platform of nine layers begins with a pile of earth; a journey of a thousand miles begins with one step. Anything basics are a must. Ten thousand zhang tall buildings start from the ground, and the tallest buildings must be built from the ground, that is to say, if you want to learn Linux well, you must first learn the basic knowledge of Linux. You can start with an introduction to the Linux system. After a comprehensive understanding of Linux, you can learn Linux system installation, Linux common commands, text editor Vim, software package management, user and user group management, permission management, file system management, and understanding shell aliases , pipes, I/O redirection, input and output, simple scripting in shell, basic network formation in Linux environment, etc., you can find a book to study these basic knowledge systematically.

Secondly, it is necessary to combine knowledge and action, and apply what you have learned . Don't learn for the sake of learning, but learn for the sake of application, combine theoretical knowledge with practical application, and achieve the goal of practice making perfect from the shallower to the deeper, and think while learning, truly understand the meaning, and operate it with ease. You can find some project cases on the Internet, and apply the knowledge you have learned by doing it yourself. You can do some simple ones at the beginning, and then choose some complex ones gradually after you are proficient. In addition, the reserves of the human brain are limited. If you just blindly memorize theoretical knowledge without practical operation, you will gradually forget what you have learned. The memory and forgetting of the human brain are regular. For the same Things need to be repeated over and over again so they won't be forgotten. The same is true of learning Linux, don't blindly catch up with the progress, and always see the bottom, so that after all the learning, you will find that you have forgotten the previous ones. Also, if you just memorize theoretical knowledge, you still don’t know how to use it even if you’ve memorized it thoroughly until you finally use it, so you have to use your brain while doing it, so as to achieve the effect of getting twice the result with half the effort. To continuously improve your actual combat skills, diligent hands-on, courage to practice, is the foundation of learning Linux.

Then be sure to learn to use Linux commands . Linux commands can be said to be the foundation of learning Linux. Linux commands have many powerful functions: for example, from simple disk operations, file access, to complex multimedia images and streaming media files are inseparable from the command line. Of course, there are a lot of commands and you don’t need to memorize them all, but you must memorize the commonly used ones, and you can’t memorize them by rote. You need to practice. You should practice while watching, try to use various parameters of the command, and operate the virtual machine several times to understand the meaning of the parameters. For the enumeration and introduction of the commands, you can see the Linuxcool Linux Commands Encyclopedia, which has a complete set of commands.

In addition, it is necessary to learn to find resources on the Internet. Now is the Internet era, and various resources can generally be found on the Internet. In the process of Linux learning, especially beginners, it is inevitable to encounter various problems, and there are thousands of problems encountered. Don't give up easily, you should find a way to solve the problem, don't forget that there is still network power to use, you can search for relevant information, network search engines, technical forums, you can also consult senior technical personnel in the industry, etc. In short, there are many ways. in difficulty. In addition, after the problem is solved, you should be good at summarizing and recording, so that the technology will be greatly improved over time, and you will become more and more confident, and you will be more motivated to learn!

Summarize

Learning Linux can not only memorize common commands, you need to choose a tutorial book suitable for your own learning, download and install a Linux distribution on your computer, and perform practical operations. In short, Linux learning requires more brains and hands-on work. Read more information on Linux, take more notes, good memory is not as good as bad writing. More practice and more operations will make you do more with less. Linux learning is a process that requires long-term persistence!