1. Introduction to Linux background

LinuxIn fact, it is an operating system, and Windowsis in a "juxtaposed" relationship. In 2009, the first version was developed 1991by Finns ( ); compared with , its features : (1) You can view the source code; (2) It is based on the network; ( 3) The security is higher; (4) The hardware resources occupied by the system are smaller, and more resources are left for the program;Linus Benedict TorvaldsLinux
windowsLinux

2. Linux environment construction

(1) Construction method

If you want to learn Linux, you first need Linuxan environment. There are four main ways to build the environment. The characteristics are as follows:

(1) Use a virtual machine;

VMWareDue to the existence of some current virtual machine software (such as ) bug, it will cause various inexplicable problems in the environment, and it is inconvenient to use;

(2) Installed directly on the physical machine;

Because the Linuxdesktop is not friendly to use, it is not used;

(3) use WSL( Windows Subsystem for Linux);

This method is a new function developed in Windowsrecent years, and Windowsone is integrated in the system Linux, but this technology is not mature enough at present;

(4) Use cloud server;

This method is more convenient, you only need to buy a cloud server (Alibaba cloud, Tencent cloud any one), 此处使用该方式搭建环境;

Three steps to build an environment with a cloud server：

(1) Purchase a cloud server;

Tencent Cloud Official Website

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Just choose 1, you need to authenticate;

(2) Installation system

CentOS 7.6Select the version ( ) of the operating system (mirror) when purchasing 没有选择这个，想更换也可以重装系统;

After completion, you can view the ipaddress and reset the password. The default account name is rootDon't care;

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Notice：

When resetting the password, click Shut Down first and then reset!

The three information of account name, password and ipaddress Linuxare ;

(3) Remote connection and reuse

Connect through the client ( Xshell), the following describes the Xshellinstallation and use;

3. Terminal connection to Linux

(1) What is a terminal

Terminal software is a type of tool software that can establish a network connection with a remote host to perform some operations on the host. Common terminal software :
(1) XShell
(2) Putty
(3) MobaXTerm
(4) Iterm2
(5)SecureCRT