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Understanding Update Management in Linux: A Comparative Look at zypper update, apt upgrade, and dnf update When it comes to maintaining Linux systems, proper update management is key to ensuring that software remains secure, stable, and efficient. Different Linux distributions rely on specific package management systems, each with its unique set of commands to update software. Today, we're delving into the distinctions and functionalities of three major update commands used in different distributions: zypper update from openSUSE, apt upgrade from Debian/Ubuntu, and dnf update from Fedora/RHEL. zypper is the command-line interface of the Zypper package management tool used in openSUSE and SUSE Linux Enterprise systems.