KRename: powerful renaming tool
KRename is a powerful batch renaming tool for KDE that allows to rename lots of files in one step. The design of the program is suitable for both advanced and novice users.
KRename supports batch renaming of files based on a set of predefined and adjustable expressions. It can also copy or move the files to another destination. Among the most notable operations are: case-toggling of file names, numbering and powerful finding and replacing. It supports changing access and modification dates, permissions, and file ownership. It can work recursively. The more demanding audience can do magic with the support for regular expressions. It can be used in tabbed mode or the more comfortable wizard mode, whatever you prefer, when sorting your picture collection, music library or project files.
KRename follows the paradigm of console based commands that can really be used for any purpose.