What does yum mean in linux

yum in linux is the abbreviation of Yellowdog Updater Modified. yum is a tool used to manage software packages on the Linux operating system. It is an open source software package manager, mainly used to automatically update, install, uninstall, query and manage software packages from software sources. yum is widely used in Red Hat-based distributions, such as Fedora, CentOS, Scientific Linux, etc.

The operating environment of this tutorial: Linux5.18.14 system, Dell G3 computer.

What is yum?

yum (full name Yellowdog Updater Modified) is a tool used to manage software packages on the Linux operating system. It is an open source software package manager, mainly used to automatically update, install, uninstall, query and manage software packages from software sources. yum is widely used in Red Hat-based distributions, such as Fedora, CentOS, Scientific Linux, etc. It uses RPM (Red Hat Package Manager) formatted package extensions.

What is the function of yum?

The main function of yum is to simplify the management process of software packages, allowing system administrators to easily update and install software packages, while ensuring the stability and security of the system.

1. Software package management: yum can automatically download and install, uninstall and update software packages from software sources. Compared to manually downloading packages and installing them through the command line, yum makes managing software packages more efficient and convenient.

2. Dependency resolution: When installing software packages, yum can automatically resolve dependencies. It checks for required library files, dependent packages, and other configuration requirements, and automatically downloads and installs them to ensure that the package can run properly.

3. Software source management: yum can manage multiple software sources at the same time. Administrators can configure yum to use official software sources, or add third-party software sources. This allows system administrators to easily switch between different software sources according to needs and gain more software choices.

4. Security updates: yum can check security patches and updates in the software source to ensure that the software packages in the system are the latest versions. By automating software package updates, yum helps system administrators reduce the risk of application vulnerabilities and improve system security.

5. Plug-in support: yum also supports various plug-in extensions to provide additional functions. For example, you can use the yum-plugin-priorities plugin to set the priorities of packages to control when they are installed and updated. There are other plugins that provide cache management, download speed limiting, and more.

Summary:

yum is a powerful, flexible and easy-to-use software package manager. It saves system administrators time and energy and improves system stability and security by simplifying the software package management process. Whether you are an individual user or an enterprise administrator, you can benefit from the functions and features of yum, making it more efficient and convenient to install and manage software packages on Linux systems.

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