[CentOS] How to extract one file from rpm using yum?

> >> The command line way of getting 1 file out of a rpm is to rpm2cpio.
> >>
> >>      rpm2cpio <rpmfilename> > <filename.cpio>
> >>
> >> Now you have a cpio archive which you can use to get files out of.
> > Or:
> >
> > rpm2cpio <rpmfilename> | cpio -idv
> >

And one more:

To extract a single file from a package

 rpm2cpio gnupg-1.2.6-6.src.rpm | cpio -ivd gnupg.spec