How do I find which rpm package supplies a file I'm looking for?

Question

As an example, I am looking for a mod_files.sh file which presumably would come with the php-devel package. I guessed that yum would i

Answer 1

The most popular answer is incomplete:

Since this search will generally be performed only for files from installed packages, yum whatprovides is made blisteringly fast by disabling all external repos (the implicit "installed" repo can't be disabled).

yum --disablerepo=* whatprovides <file>