Renaming multiple files seems to be a problem which many newcomers to shell scripting, or administration, have problems with. But once you've done it a few times the actual solutions are very simple.
There are many cases where you might have a large number of files to rename en masse, for example files which are output from a given script or tool. Or files that must be renamed to be uploaded to a web-host.
How you rename the files mostly depends on which tools you have available, and which shell you're using.
