Package ren

Rename multiple files

http://linux.maruhn.com/sec/ren.html

Whereas mv can rename (as opposed to move) only one file at a time,
ren can rename many files according to search and replacement
patterns, ala VMS and MS-DOS (but better). ren checks for replacement name
collisions and handles rename chains (1 goes to 2 goes to 3 etc.)
gracefully.

General Commands
Command Description
ren rename multiple files