You need several CPAN modules to use these scripts.

If you use Debian GNU/Linux, you can install them like so:

sudo aptitude install -R libdatetime-format-mysql-perl libdatetime-perl \
libdbd-mysql-perl libdbix-class-perl libemail-valid-perl libfile-slurp-perl \
libio-prompt-perl libmime-base64-perl libmime-lite-perl libstring-mkpasswd-perl \
libtemplate-perl libyaml-syck-perl

This will most probably work for Ubuntu as well.