Why do programmers use linux?

The reasons why programmers use Linux: 1. Linux code is open source, and programmers can participate in its development while reading the code. This is very tempting for programmers; 2. The Linux system can support multiple users at the same time. Each user has special rights to their own file devices, which can ensure that users do not interfere with each other. Each user can also perform multiple tasks at the same time and multiple threads work at the same time. Improve efficiency; 3. Good stability and efficiency; 4. High security, with built-in firewall; 5. Good performance, with rich system resource tools.

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

Since its birth, Linux has received all kinds of love and attention from outstanding hacker programmers around the world. In the past, Linux seemed very far away from us; but now, more and more people have heard about Linux, will discuss Linux distributions, and will pay attention to the Linux kernel. And programmers are even more keen to use Linux and develop in Linux. So, why does Linux attract so many programmers?

01

Linux code open source

Programmers are always full of curiosity about excellent code. In the past, windows or The code of MAC is not disclosed to the public, and programmers do not have the opportunity to have in-depth contact with the operating system. However, Linux code can be obtained by anyone from the Internet because of its open source nature. This can be said to be of epochal significance, and it is precisely because the code is open source that it promotes the development of Linux. As a programmer, reading excellent and high-quality code is a process of self-improvement and a pleasing journey.

The code of the Linux kernel is a treasure that is a collection of excellent codes from all over the world. Programmers can participate in its development while reading the code. This is very tempting for programmers. You can imagine how exciting it is to be able to participate in the development of excellent products. For technical people, Linux is a paradise.

02

Multi-user, multi-tasking, multi-thread

Linux system can support multiple users at the same time, each Users have special rights to their own file devices, which can ensure that users do not interfere with each other. It is like opening an assistant on a mobile phone and logging in to multiple QQ accounts at the same time. When the hardware configuration is very high, each user can also execute at the same time. Multiple tasks and multiple threads work at the same time to improve efficiency. It is a perfect mess. In terms of multiple users alone, it completely beats other operating systems.

03

Stability and Efficiency

You may hear that the Windows server suddenly crashes after running for a long time , but you will never hear that the Linux system server will get stuck because it is not shut down for a long time. This situation almost never happens on Linux. The Linux server can run endlessly without downtime because it inherits the excellent stability and efficiency of Unix. It is precisely because of its stability that it has won the favor of many users. Because of its efficiency, its scope of use is broader. However, Linux can also provide some high-reliability services, such as: LNMP, virtualization, database services, etc.

04

Security and SELinux

Its security is much safer than other systems, because Linux has It has a large user and open source community support, so it can quickly discover system vulnerabilities, and quickly release security patches and update them in a timely manner. It also has strong "immunity" characteristics and is rarely attacked by viruses. For an open system , while convenient for users, it is likely to have security risks.

However, using Linux’s own firewall (iptables, firewalld), intrusion detection and security authentication tools to promptly patch system vulnerabilities can greatly improve the security of the Linux system and prevent hackers from taking advantage of it. There is also a security enhancement mechanism SElinux, which provides mandatory access control in the Linux kernel. It has very comprehensive functions and can protect systems and services well. However, many people like to turn it off, which is not very safe.

Tcp_wrappers can also provide good network service access control. The Linux system is also very good at managing user and file management permissions. It can control permissions very well and ensure the confidentiality of files, as well as other Systems are incomparable, so Linux systems are indestructible to a certain extent.

05

Performance advantages

Because Linux wants to ensure its stability, it does not have the same kernel as other operating systems. It is so bloated and full of loopholes. With the continuous updating of the Linux kernel, its advantages are constantly improved. The Linux operating system can fully reflect the hardware advantages of the server, because the Linux system has absorbed the experience of the development of the Unix system for nearly a quarter of a century, and finally The main thing is that Linux is open source code to ensure system stability and better use of hardware functions. It also provides a wealth of system resource tools top, freee, df, vmstat, dmesg, iostat, sar, uptime, etc. to facilitate viewing of resources. Utilization.

The above is enough to make you fall into the arms of Linux.

Of course, in addition to these, there are some unknown things, such as:

06

bigger than bigger

Get your Linux system out and start doing stuff with the command line. For example, enter sudo rm -rf /* which looks very cool to a layman!

Related recommendations: "Linux Video Tutorial"

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