Why use linux system

First of all, let me talk about how I started learning Linux. When I first came into contact with computers, I didn’t understand anything. I only knew that computers are divided into hardware and software. But when it came to subdividing them, I was confused and didn’t know how. There are too many things to choose from, and I don’t know whether software development or system operation and maintenance is better. After I read a book, I decisively chose system operation and maintenance. Next, I will share with you the process of how I went from being a novice to Linux master. This process can be said to be simple or easy, but it can also be said to be difficult. Everyone knows how to reach a thousand miles if you don't take a step of silicon, and how to become a river if you don't accumulate small streams. No matter what you do, the most important thing is persistence. You have to think that this is how you will make a living in the future. If you don’t work hard now, you will work hard when. If you want to learn Linux, what are you waiting for? I believe that learning Linux by yourself is a good choice.

Secondly, let me tell you about the benefits of Llinux. Linux is an open source Unix-like operating system based on POSIX and UNIX for multi-user and multi-tasking. , Support multi-threading and multi-CPU operating systems. Linux inherits the network-centric design philosophy of Unix and is a multi-user network operating system with stable performance. Users can obtain it for free through the Internet or other channels, and can modify its source code at will. This is something other operating systems cannot do. It is precisely because of this that countless programmers from all over the world have participated in the modification and writing of Linux. Programmers can change it according to their own interests and inspirations. This allows Linux to absorb the essence of countless programmers and continue to grow.

Linux's graphical interface also has unique features. A typical desktop environment provides icons, windows, toolbars, folders, wallpapers and capabilities like drag and drop. Overall, the design and functional features of the desktop environment give it a distinctive look and feel. This is just one of its advantages, the second advantage is its safety. Because it is open source, any system vulnerabilities will be quickly discovered by private experts or official personnel. The time from the discovery of the vulnerability to the release of the patch is quite short, leaving no time for viruses or hackers to cause trouble.

Then there is the permission management of Linux. The permission management of Linux is very strict. Linux system installation programs basically use software management programs, which are downloaded and installed directly from the program developer's official website or the corresponding distribution community. No maliciously tampered software will be installed on the user's computer. Safe and convenient.

Linux gives all operating rights to the user. She believes that the user is rational and smart, faithfully executes the user's instructions, and exposes all details to the user. While users have autonomy, they also have destructive power, so ordinary users cannot control it at all, and may crash the operating system with just one command. For developers, the openness and freedom of Linux gives us unlimited possibilities. We can see how the program runs, and there will also be friendly prompts when running errors. Problems can often be solved by following the error reporting guidelines. Getting along with her is like getting along with a mature woman. After going through ups and downs, she no longer pays attention to the exaggerated appearance, but focuses on the inner cultivation. When you first get in touch with her, you may think she is aloof, but gradually you will find that she is very considerate. When she is in a bad mood, she will tell you what caused it and discuss how to solve the problem instead of being unreasonable. The ground collapsed. When you get along with them, you will feel very comfortable. They are honest with each other and there is no need for routine. I know everything you are thinking. You also understand what I am thinking.

Then I would like to share with you some of my feelings when learning Linux. At the beginning, I felt that it was not easy to get started because all operations rely on the command line rather than fool-like graphical operations. Some people will ask how to remember so many commands, then I am speechless. The command line is not memorized by rote. If that is the case, it is not as good as the graphical operation. But don’t worry, after reading "This is how you should learn Linux", you will know that the command line should be written like this. First, classify the commands, such as viewing commands in a folder, installation commands in a folder, and system commands. Put it in a folder. As long as you operate the computer every day, within a month, you will be able to use the command line proficiently.

Of course, the charm of Linux does not stop there. If you want to do Linux operation and maintenance, you must learn a language well, that is Python. The advantages of Python itself: simple, easy to learn, fast, free, open source, high-level language, portability, interpretability, scalability, embeddability, rich Library, unique syntax.

As a "glue language", it can easily connect various modules made in other languages. Compared with C and Java, the charm of Python is more prominent, because to complete the same task, C language requires 1,000 lines of code, Java only requires 100 lines of code, and Python may only need 20 lines to easily complete it. The advantage of Python in system operation and maintenance lies in its powerful development capabilities and complete industrial chain. Its development capabilities are far stronger than various Shells and Perl. It can indeed realize automated operation and maintenance through Shell scripts! The idea of ​​using automated operation and maintenance to achieve large-scale cluster maintenance is right, but due to the weak programmability of the Shell itself, it does not have enough support for many features needed for daily maintenance, and there are no ready-made libraries to draw from, and various functions are limited. It needs to be written from scratch, so the shell script is not powerful enough. If you learn Python well, you will have the opportunity to enter Linux system operation and maintenance. The early learning may be boring and boring. You can't just start because you don't know how to do it, but you must learn to adjust yourself. After the boring period, you will find that there is a bright future after another.

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