package-cleanup is a program for cleaning up the locally-installed RPMs.

-v, --version

Report program version and exit.

-h, --help

Help; display a help message and then quit.

-q, --quiet

Print out nothing unecessary.

-y

Agree to anything asked.

-c <config file>

Use alternative config file (default is /etc/yum.conf).

--problems

List dependency problems in the local RPM database.

--leaves

List leaf nodes in the local RPM database. Leaf nodes are RPMs that are not relied upon by any other RPM.

--problems

List dependency problems in the local RPM database.

--orphans

List installed packages which are not available from currenly configured repositories.

--oldkernels

Remove old kernel and kernel-devel packages.

--all

When listing leaf nodes also list leaf nodes that are not libraries.

--count <COUNT>

Number of kernel packages to keep on the system (default 2)

--keepdevel

Do not remove kernel-devel packages when removing kernels

List all dependency problems:

package-cleanup --problems

List all packages that are not in any Yum repository:

package-cleanup --orphans

Remove old kernels keeping 3 and leaving old kernel-devel packages installed:

package-cleanup --oldkernels --count=3 --keepdevel

/etc/yum.conf
/etc/yum/repos.d/
/var/cache/yum/