What can I do after learning linux system?

After learning linux system, you can engage in network application direction, system maintenance direction, driver development and so on.

Introduction to Linux:

Linux is a Unix-like operating system, which can be used and distributed for free. It is a multi-user, multi-task, multi-thread and multi-CPU operating system based on POSIX and UNIX. 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.

Linux operating system was born in 199 1 year1year 10/0/0/5 (this is the first official announcement time). There are many different versions of Linux, but they all use the Linux kernel. Linux can be installed on various computer hardware devices, such as mobile phones, tablets, routers, video game consoles, desktop computers, mainframes and supercomputers.

Strictly speaking, the word Linux itself only means Linux kernel, but in fact, people have become accustomed to using Linux to describe the entire operating system based on Linux kernel, and using GNU engineering tools and databases.

Main features of Linux system:

1, basic idea

The basic idea of Linux has two points: first, everything is a file; Second, every software has a clear purpose. The first is that everything in the system boils down to one file, including commands, hardware and software devices, operating systems, processes and so on. For the operating system kernel, they are all regarded as files with their own characteristics or types. As for saying that Linux is based on Unix, it is largely because their basic ideas are very similar.

2. It's completely free

Linux is a free operating system, users can get it through the network or other channels for free, and can modify its source code at will. This is beyond the reach of other operating systems. Because of this, countless programmers from all over the world have participated in the modification and writing of Linux, and programmers can modify it according to their own interests and inspiration, which makes Linux absorb the essence of countless programmers and grow continuously.

3. Fully compatible with POSIX 1.0 standard.

This makes it possible to run common DOS and Windows programs under Linux through corresponding simulators. This laid the foundation for users to switch from Windows to Linux. When many users consider using Linux, they are thinking about whether the common programs under Windows can run normally, which dispels their doubts.

4, multi-user, multi-task

Linux supports multi-users, and each user has his own special rights to his own file device, which ensures that each user does not affect each other. Multi-tasking is one of the most important features of computers. Linux allows multiple programs to run independently at the same time.

5. Good interface

Linux has both a character interface and a graphical interface. In the character interface, users can input corresponding instructions through the keyboard to operate. At the same time, it also provides an X-Window system similar to Windows graphical interface, which users can operate with the mouse. In the X-Window environment, similar to Windows, it can be said that it is a Linux version of Windows.

6. Support multiple platforms

Linux can run on a variety of hardware platforms, such as platforms with x86, 680x0, SPARC, Alpha and other processors. In addition, Linux is an embedded operating system, which can run on PDA, set-top box or game machine. The Linux kernel released in June 20065438+0 has been able to fully support Intel? 64-bit chip architecture. Linux also supports multiprocessor technology. Multiple processors work at the same time, which greatly improves the system performance.