Flickr-upload is a project mainly written in Perl, it's free.
Uploader for flickr.com
To install this module type the following:
perl Makefile.PL make make test make install
flickr_upload is a completely functional batch uploading tool. There's also a good amount of examples included as tests in t/ of the source distribution. And you can always ask me how to do something if it's not obvious. I might even know.
Git repository at: git://gitorious.org/flickrupload/mainline.git http://git.gitorious.org/flickrupload/mainline.git
Copyright (C) 2004,2005,2006,2007,2008 by Christophe Beauregard
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.3 or, at your option, any later version of Perl 5 you may have available.
This module is not an official Flickr.com (or Ludicorp, or Yahoo) service.