| Package management systems automate the installation, removal and upgrade of software. Different systems do things in similar but not identical ways. GNU/Linux systems have the most highly developed package management systems. This chapter describes the facilities available for Linux, Solaris, and Mac OS X. It presents the following topics: Linux package management The Red Hat package manager Yum: Yellowdog Updater Modified up2date: Red Hat update agent The Debian package manager Mac OS X package management Solaris package management |