I suggest renaming rename to something else as Larry Wall himself wrote a rename script that used to be distributed with perl in the examples ('eg') directory. Although I don't think it is included in newer distributions, it's a very useful little script and is often moved to /usr/local/bin or an equivalent by sysadmins who want to make it available to their users.

-sauoq
"My two cents aren't worth a dime.";