Experienced Linux users share learning advice to help you get started easily

There are many books and blogs about Linux now. Most of them will be "rude" and stuff a lot of commands into readers' small Linux systems, which will make many Linux beginners sigh and pass by before they get started.

Below Qianfeng Shanghai editor has found some suggestions for you from a senior Linux user on learning Linux:

With the expansion of Linux applications, many colleagues have begun to come into contact with Linux. According to the experience of learning Windwos, they often feel frustrated: I don’t know where to start.

As a Linux system administrator, I have read many documents and books about Linux and Linux installation tutorials, and have made a lot of hard work to learn Linux. After actually getting an upcoming Linux system management job, I gained a deeper understanding of the soul of Linux: services and multi-users.

Linux system knowledge is very extensive, and as long as you master the key knowledge, managing it is not as scary as imagined. Below I will systematically introduce to you some of my work experience and summarized experience as a system administrator.

1. Purpose of Learning

It goes without saying that the purpose of mastering UNIX through Linux learning is unnecessary. In this era when the net worth of Internet talents is doubling, it is unwise to rely on technology without mastering Internet and programming technology. When a person hears about Linux for the first time and is eager to try it, he will always ask a few questions

What is it (What)? Why should we use it (Why)? How to learn it (How)?

As an important part of the open source movement, Linux is used more and more widely, from our daily entertainment and learning, to business and government offices, to large-scale computing applications. In order to meet people's needs, various Linux-based application software emerge in endlessly.

As long as you have the basic skills of LinuX and the ability to self-study, you can master the special content through years of study.

2. Start learning from commands

Often some students want to build a website as soon as they come into contact with Linux, but they never think of understanding the basics of Linux first. This is quite difficult. In fact, Linux desktop applications are developing rapidly, and commands still have strong vitality in Linux.

Linux is an operating system composed of command lines. The essence lies in the command line. No matter how far the graphical interface develops, this principle will not change. Linux commands have many powerful functions: from simple c drive operations to file storage. Fetch and create complex multimedia images and streaming media files.

Here, the author divides the more important and most frequently used commands among them into several parts according to their functions in the system and introduces them to you. Through the learning of this basic command, we can further understand the Linux system:

3. Choose good introductory Linux books and related videos

In various Linux summits, the most common questions we see are often from a rookie who encounters a specific problem during the installation or use of Linux and starts asking questionslinux Chinese forum, many of which are repeated When it comes to sexual issues, many people don’t even have a clear description of the basic issues.

This shows that many people who are new to Linux have not mastered the basic skills. How to quickly enhance the basic skills of Linux?

The most effective way is to study authoritative Linux reference books. Reference books are very important for learners. A reference book with misconceptions can lead a novice astray. The editor will not make too many recommendations here. It is recommended that beginners search for reviews and introductions of related books on the Internet. Children with zero basic knowledge should avoid choosing books with too in-depth content.

Currently there are many free related videos on the Internet. It is recommended that those who have not been exposed to or are new to the operation and maintenance industry first watch some free basic videos or attend some offline free industry introduction lectures, so as to It is very important to know how to get started, how to start learning, or which methods to choose to learn.

4. Develop the habit of working under the command line

Be sure to develop the habit of working under the command line. You must know that X-window is just an application running in the command line mode. Learning under the command line actually progresses slowly at the beginning, and once you become familiar with it, your future learning path will decrease exponentially.

From a network administrator's point of view, the command line is actually a rule. It is always valid and flexible at the same time. Although through a flat modulation mixer line, it can also control remote systems thousands of kilometers away.

5. Think about Linux with Unix thinking

Because Linux is designed with reference to Unix thinking, understanding and mastering it must be done with Unix thinking, not Windows thinking. It cannot be proven that a large part of Windows' success in the market lies in the uniqueness of its technical ideas.

However, this innovation is carried out on the premise of facing individual users, and facing enterprise-level service applications, it is still somewhat inadequate. For many years, in the field of computer operating systems, the two have still dominated: Unix in the server field, and Windows in the personal user field.

It can be seen that user needs determine the operating system used. No matter what the reason is, if you want to learn Linux, you must first drag your thinking down from the "little river" of Windows and pour it into the ocean of Unix.

6. Learning shell and Python

Readers who are used to Windows must be very unfamiliar with Shell (English name shell), because Windows has only one "Shell" (if it can be said to be a Shell), and that is Windows itself. An easy-to-understand explanation in one sentence is that the shell is the intermediary between the user's input commands and the system's interpretation of the commands.

The most intuitive statement is that a Shell has its own set of commands. To give an easy-to-understand counterexample, the standard Shel of Linux is BashShel; the shell of Solaris is Bshell; the Shell of Linux is expressed in the form of a command line. Readers may not understand that Windows has "evolved" from the command line to the graphical interface. Wouldn't it be a step backwards if Linux still uses the command line today?

I had this kind of view when I first came into contact with Linux. And later I discovered that if a graphical interface is used, less resources will be allocated to the application software. On expensive servers, it is extremely important to be able to achieve the same functions with lower hardware configurations.

Below are examples:

A server has 1GB of video memory. Assume that 512MB of it is used to process the graphical interface. If you want to install a database software that requires 784MB of video memory, the only way is to expand the video memory. And if you use the command line, the system may only need 64MB of video memory, and the other video memory can be used by the database software. Using the command line linux Chinese Forum can save a lot of resources such as CPU and hard disk in addition to video memory.

So, using the command line as a server is an advantage rather than a disadvantage. Since Shell has so many advantages, you must learn it.

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