yum list installed *el5
Loaded plugins: fastestmirror, priorities, protectbase, replace
Loading mirror speeds from cached hostfile
* base: mirror.yellowfiber.net
* extras: mirror.yellowfiber.net
* mratwork-epel: mirror.symnds.com
* mratwork-ius-stable: ius.mirror.constant.com
* mratwork-release-neutral-noarch: rpms.mratwork.com
* mratwork-release-version-arch: rpms.mratwork.com
* mratwork-webtatic: us-east.repo.webtatic.com
* updates: mirror.yellowfiber.net
0 packages excluded due to repository protections
Error: No matching Packages to list