August 10, 2010

Yellowdog Updater, Modified (YUM)

Slackware 12.

The Yellowdog Updater, Modified (YUM) is an open-source command-line package-management utility for RPM-compatible Linux operating systems and has been released under the GNU General Public License. It was developed by Seth Vidal and a group of volunteer programmers. Though yum has a command-line interface, several other tools provide graphical user interfaces to yum functionality.

As of 2009 Seth Vidal works for Red Hat, and a number of other Red Hat programmers are involved in the development of yum.

As a full rewrite of its predecessor tool, Yellowdog Updater (YUP), yum evolved primarily in order to update and manage Red Hat Linux systems used at the Duke University department of Physics. Since then, it has been adopted by Red Hat Enterprise Linux, Fedora, CentOS, and many other RPM-based Linux distributions, including Yellow Dog Linux itself, where it has replaced the original YUP utility.

System administrators can automate software updates using yum-updatesd, the yum-updateonboot package, the yum-cron package, or PackageKit.

Yum's XML repository, built with input from many other developers, quickly became the standard for RPM-based repositories. Besides the distributions that use Yum directly, SUSE Linux 10.1 adds support for Yum repositories in YaST, and the openSUSE Build Service repositories are exclusively Yum-based.

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