Complete File Renamer is a multiple file renaming tool. It makes it easy to keep movie, music, image and other file's names consistent and organized. It comes with lots of renaming options, mp3 tag support, instant preview and undo/redo support.
This version of Complete File Renamer comes with a command line utility tool cmdren.exe, aka Command Line File Renamer 1.0. You can use cmdren.exe in scripts and batch files to automate your tasks.