What is yum command? The yum command is the primary tool for getting, installing, deleting, querying, and otherwise managing Red Hat Enterprise Linux RPM software packages from official Red Hat software repositories, as well as other third-party repositories.
What is RPM and yum? RPM is autonomous and utilizes its own database to keep information about the packages on the system. YUM is a front-end utility that uses the RPM package manager for package management. The utility also uses the RPM database in the backend. Ease of use. RPM package management and handling gets complicated at times.
What is the difference between apt and yum? Installing is basically the same, you do ‘yum install package’ or ‘apt-get install package’ you get the same result. Yum automatically refreshes the list of packages, whilst with apt-get you must execute a command ‘apt-get update’ to get the fresh packages. Another difference is upgrading all the packages.
What is sudo yum update? “yum update” updates all the presently installed packages to their latest versions that are available in the repositories and “yum upgrade” performs the same action as “yum update”, but once finished it also removes all of the obsolete packages from the system.