What is the function of yum command under linux

The yum command under Linux is used to manage and install software packages. The main functions of the yum command include: 1. Software package management, searching, installing, updating and uninstalling from online software warehouses or local sources Software packages; 2. Dependency resolution, automatically parsing and installing these dependencies, ensuring that required software packages are installed correctly; 3. Software source management, adding, deleting or disabling software sources by configuring yum; 4. System Updates, both to the operating system itself and to installed software packages.

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

In Linux systems, yum is a package manager used to manage and install software packages. It is the abbreviation of Yellowdog Updater, Modified (YUM), which was originally designed for the Red Hat series of distributions, but is now also used by many other RPM (RPM Package Manager)-based Linux distributions.

The main functions of the yum command include:

1. Software package management: yum can find, install, update and uninstall software from online software repositories or local sources Bag. Users can use the yum command to easily manage software packages on the system and automatically resolve dependencies between software packages.

2. Dependency resolution: When installing a software package, it may depend on other software packages. yum will automatically resolve and install these dependencies, ensuring that required packages are installed correctly and version compatibility is met.

3. Software source management: yum provides the function of managing software sources. Users can configure yum to add, remove, or disable software sources to obtain software packages from different sources.

4. System update: yum can easily update the system, including the update of the operating system itself and installed software packages. Available update versions can be obtained and installed by running the yum update command.

In short, yum is a powerful package manager used in Linux systems, which simplifies the installation, update and management process of software packages. By automatically resolving dependencies, managing software sources, and providing system updates, yum can improve the efficiency and convenience of software management on Linux systems.

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