linux view installation mysql

Linux is an open source operating system that is widely used in server operating systems. MySQL is a relational database management system widely used in web applications. Installing MySQL in Linux is a very common operation, so knowing how to view the installation of MySQL is very useful knowledge.

In Linux, there are many ways to check whether MySQL is installed. The following will introduce several common methods.

Method 1: Use the command line to check the MySQL installation status

First, open the command line tool. You can open the command line by entering the following command in the Linux terminal:

Ctrl + Alt + T

Enter the following command in the command line:

mysql --version

If MySQL has been installed in the system, the version number of MySQL will be returned. , an example is as follows:

mysql  Ver 14.14 Distrib 5.7.30, for Linux (x86_64) using  EditLine wrapper

If the returned result is "command not found", it means that MySQL is not installed in the system.

Method 2: Use the yum command to query the MySQL installation status

In Linux, you can use the yum command to query the MySQL installation status. yum is a commonly used software package management tool in Linux. Commonly used commands for yum include:

// 更新缓存
sudo yum makecache
// 查看可用软件包列表
yum list
// 查找MySQL软件包
yum search mysql
// 安装MySQL软件包
sudo yum install mysql-server
// 卸载MySQL软件包
sudo yum remove mysql-server

You can check the installation status of MySQL through the following command:

yum list installed | grep mysql

If MySQL has been installed in the system, the name of the installed MySQL package will be displayed.

Method 3: Check the installation status of MySQL through the system menu

In the Linux graphical interface, you can check the installation status of MySQL through the application menu. The specific steps are as follows:

1. Open the Linux system menu.
2. Find "System Tools" or "Application Repository".
3. Find MySQL in the system tools or application repository. If MySQL is already installed, the MySQL icon will be displayed.

It should be noted that in Linux systems, if MySQL is not installed, the MySQL package should be installed with the permissions of the system administrator.

Through the above three methods, we can easily check whether MySQL has been installed in the Linux system. This is very useful knowledge for system administrators and developers. At work, we often need to use MySQL to store and manage data, and we must ensure that MySQL has been correctly installed in the system. If MySQL is not installed correctly, it will cause the web application to fail to run properly and bring unnecessary trouble to the business. Therefore, it is very important to know how to view the installation of MySQL.

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