[CentOS] How to change an executable into a directory

Tue Dec 30 17:57:11 UTC 2008
MHR <mhullrich at gmail.com>

I just discovered that a couple of files on my system are ELF
executables when they should be directories.  How do I change a file
into a directory?  I don't think I've ever run into this one
before....

Thanks

mhr
CentOS 5.2 w/all updates