The yum command is used to perform a number of tasks.

• yum search (display information about a package)
• yum info (display information about a package)
• yum list (list installed and available packages)
• yum provides (determine the package that provides a file)
• yumdownloader (download a package)
• yum install (install a package)
• yum update (update a package)
• yum remove or yum erase (uninstall a package)

Alternatively, the Ansible yum module can be used to automate the process of managing packages.

Yum uses repos to obtain packages, such as /etc/yum.repos.d/Centos-Base.repo. To configure the repos that yum uses, refer to this article.