Rapid Photo Downloader is an application for professional and amateur photographers, designed for use on the Linux desktop. It can download photos and videos from multiple cameras, memory cards, and portable storage devices simultaneously. It provides many flexible, user-defined options for subfolder creation, photo and video renaming, and backup.
emv is a tool for mass-renaming files with a text editor. It can perform two pass renaming, link creation, file list splitting, and link target editing. emv logs its actions as shell-script-style mv commands in case you want to undo them. It is quite capable when used with the Vim text editor's visual block changes. emv can also be used non-interactively by providing a Perl expression for renaming files. It's especially useful if you want to see all the files at once and want to think about their names while editing and changing whole groups of files.