Yum or Yellow dog Updater Modified, or Yellow dog Update Manager, which according to it, YUM is said to be, a software application, source, open, be sure to manage software packages compatible with the RPM in the Linux operating system is used. This software by Seth Vidal and a group of programmers volunteering was produced and is licensed under the GNU (GNU) published. This project now as part of the project, Linux, Duke of, Duke University is maintained. Although YUM is a tool based on command-line. tools different that for its graphical user interface creates also have been produced. Including this tool can be pup up. pirut and yumex.