Why learn linux

Currently, a large number of enterprises use Linux as servers. After you are employed in the future, you will find that web servers such as Tomcat and jobss are built on Linux. Later we need to learn the databases mysql, oracle, db2, or Greenplum and the like are also built using Linux in enterprises.

Why should you learn Linux

In the ranking of the top 500 operating systems for supercomputers in the world, Linux The proportion has remained above 85% for a long time in the past ten years, and has been showing a rapid upward trend. According to the 2016 rankings, Linux’s share has reached 98.80%. (Recommended learning: linux operation and maintenance)

In fact, in the field of server applications of various large, small and medium-sized enterprises, the market share of Linux systems is getting closer and closer to this ratio. This is enough to show how good Linux's performance is.

Many novices have a very confusing question: "I have heard of Linux, but what can I do on it when learning the Linux system, or what specifically can the Linux system do?" With this question , let’s first understand the relationship between Linux and open source software, as well as the application fields and future development trends of Linux.

1. Linux and open source software

Linux is a free and open source UNIX-like operating system. The kernel of the operating system is written by Linas Stova It was first released in 1991. Later, after adding user space applications, it became the Linux operating system.

Strictly speaking, Linux is just the operating system kernel itself, but "Linux kernel" is usually used to express this meaning. Linux is often used to refer to a complete operating system based on the Linux kernel, which includes GUI components and many other practical tools.

The GNU General Public License (GNU GPL or GPL for short) is a widely used free software license agreement originally written by Richard Stallman for the GNU project. GPL Given the definition of free software for computer programs, any product developed based on GPL software must be released under a GPL license and the source code must be disclosed.

Linux is the most famous example of the development of free software and open source software. As long as the GNU General Public License is followed, any individual or institution can freely use all the underlying source code of Linux, and can also modify and redistribute it freely.

With the rapid development of the Linux operating system, various open source software and practical tools integrated on Linux have also been applied and popularized. Therefore, Linux has also become synonymous with open source software.

2. The development of Linux in the server field

As the influence of open source software increases worldwide, the Linux server operating system plays an important role in the entire server operating system market. It has occupied more and more market shares and has formed a situation of large-scale market application. And maintain a rapid growth rate. Especially in key national fields such as government, finance, agriculture, transportation, and telecommunications.

In addition, considering the rapid growth of Linux and the support of relevant national policies, Linux server products will definitely be able to impact the larger server market. According to statistics from authoritative departments, Linux currently occupies 75% of the market share in the server field. At the same time, the rapid rise of Linux in the server market has attracted great attention from the global IT industry and has become the backbone of the server operating system field with strong momentum. strength.

3. The development of Linux in the desktop field

In recent years, especially in the domestic market, the development trend of Linux desktop operating systems has been very rapid. Domestic system software manufacturers such as Kirin Linux, Hongqi Linux, Deepin Linux and other system software manufacturers have launched Linux desktop operating systems, which have been widely used in government, enterprises, OEM and other fields.

In addition, SUSE and Ubuntu have also launched Linux-based desktop systems, especially Ubuntu Linux, which has accumulated a large number of community users. However, from the perspective of the overall function and performance of the system, there is still a certain gap between the Linux desktop system and the Windows series, mainly in terms of system ease of use, system management, software and hardware compatibility, and software richness.

4. Linux is widely used in embedded systems and the development of the field

Linux’s low cost, powerful customization functions and good portability make Linux popular in Embedded systems are also widely used. Currently, Linux is widely used in mobile phones, tablet computers, routers, televisions, electronic game consoles and other fields. The Android operating system is built on the Linux kernel.

At present, Android has become the most popular smartphone operating system in the world. According to the latest statistics from authoritative departments in 2015, the global market share of the Android operating system has reached 84.6%.

5. The development of Linux in the field of cloud computing/big data

The rapid development of the Internet industry has promoted the formation and rapid development of cloud computing and big data industries. As a platform based on open source software, cloud computing and big data occupy the core advantage; according to research by the Linux Foundation, 86% of enterprises have used Linux operating systems to build cloud computing and big data platforms. Currently, Linux has begun to replace Unix as the most popular operating system for cloud computing and big data platforms

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