With the continuous occurrence and progress, the users of Linux system continue to soar, and more and more enterprises are beginning to use Linux system. However, some people don't know much about Linux, and they may wonder what the Linux architecture is like? The Linux system architecture is divided into three main parts, let's take a look next.
1. Linux kernel: The kernel is the core of the system, which is the core program for running programs and managing hardware devices such as disks and printers. The operating system provides an operating interface to the user, receives commands from the user, and sends the commands to the kernel for execution. After we installed Linux, a common kernel was installed in the host, and this common kernel can meet the needs of most users.
Linux allows users to customize the Linux kernel according to the actual configuration of the host, which can simplify the Linux kernel and improve the system startup speed.
2. Linux shell: The shell is the user interface of the system, which provides an interface for the user to interact with the kernel. Receive the command entered by the user and send it to the kernel for execution. The operating system provides an operating interface between the system kernel and the user. Linux has a variety of operating environments, including an integrated desktop environment based on a graphical interface and a Shell command line environment.
The shell is a command interpreter, which interprets the commands entered by the user and sends them to the kernel. The shell programming language has the characteristics of a universal programming language.
3. Practical tools: Linux systems have supporting utility programs, such as editors, browsers, office suites and other system management tools, and users can write the applications they need by themselves.