Linux package management system

• RPM
  
• up2date used in Red Hat Enterprise Linux
• yum used in Fedora Core, CentOS, and Yellow Dog Linux
• YaST used in SUSE Linux
• urpmi used in Mandriva Linux
• apt-rpm, a port of Debian's Advanced Packaging Tool (APT) whose use is recommended by some Fedora repositories. It is less actively developed but generally uses fewer CPU cycles than the above.
• Smart Package Manager, available for many distributions
• APT - package management system used by Debian
• Portage - package management system used by Gentoo
• Autopackage - a "complimentary" package management system

credit: http://en.wikipedia.org/wiki/RPM_Package_Manager