massrename is a general-purpose utility for
batch-renaming file extensions, as well as strings within the base filename (for example, "SomeblehFile.mp3" to "SomeblahFile.mp3").
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
An optional argument was added to allow changing to a
different directory to rename files, instead of using the current
directory. The logfile name was changed to renamed.log. The
system's "mv" command is now used to rename by default,
however, Perl's internal rename() function can be used by
employing a command-line argument. Command-line arguments
were added to allow a string to be appended or prepended to
the filename. The outdated man page was removed.
