GPRename

GPRename is a computer program for renaming multiple files and directories at one time. GPRename is written in Perl, and runs on any Unix-like operating system.

Features

 * Rename both files and directories
 * Case change: to UPPERCASE, to lowercase or Only The First Letter
 * Insert or delete text at a position
 * Replace text with the option of case sensitive
 * Search text with the option of regular expression
 * Rename with numbers (001.jpg, 002.jpg, 003.jpg...)
 * Automatically trim double spaces to one space, also trim leading and/or trailing spaces around the name
 * Multilingual : Brazilian Portuguese, English, French, Polish, Spanish

History
At the start of 2007, GPRename has been ported from the deprecated GTK-Perl to the new GTK2-Perl and in mid-2007 the new 2.4 release is now GPL-3.

Reception
Jack Wallen writing in ghacks.net in August 2010 said:

GPRename is an outstanding tool to use in place of writing shell scripts in order to rename multiple files in Linux. You won’t find an easier tool for this task (if you’re not already used to whipping up a shell script).