rpm  5.2.1
About: RPM is a powerful and mature command-line driven package management system capable of installing, uninstalling, verifying, querying, and updating Unix software packages ("no longer Linux-centric"). Hint: The RPM homepage may offer newer releases (but in rpm format).
  Fossies Dox: rpm-5.2.1.tar.gz  ("inofficial" and yet experimental doxygen-generated source code documentation)  

rpm Documentation