Métamorphose is a free, open source program to mass rename files and folders which combines great flexibility with an intuitive interface.
A profesional renaming tool for almost any situation, it has many powerful functions. Well suited for those that need to rename many files and/or folders on a regular basis.
* Fix multiple preference problems by changing how settings are accessed.
* Fix inconsistent highlighting (ticket 2974367).
* Fix Ubunut/Debian install issue with .desktop file (ticket 2967145).
* Preliminary Spanish Translation.
Tools and Utilities
Product page: here