Problem Statement
What package manager does RHEL/CentOS use?
Explanation
YUM (Yellowdog Updater Modified) is the traditional package manager for Red Hat-based distributions including RHEL, CentOS, and Fedora. DNF (Dandified YUM) is the modern replacement, offering better performance and dependency resolution. Both use RPM packages (.rpm files) and have similar command syntax.
Common yum/dnf commands: yum update (update all packages), yum install package (install package), yum remove package (remove package), yum search keyword (search packages), yum info package (show details), yum list installed (list installed packages). Use sudo for administrative operations. DNF is default in Fedora and newer RHEL/CentOS versions.
Repository configuration in /etc/yum.repos.d/ defines package sources. YUM/DNF automatically handles dependencies, downloading and installing required packages. Use yum clean all to clear cache. Understanding yum/dnf is crucial for managing RHEL/CentOS systems commonly used in enterprise environments and is important for DevOps professionals working with diverse Linux distributions.
