in reply to One-off mime splitter

You don't give much details, but I think this (from the Mime::tools documentation) could be of some help:
Here's some pretty basic code for parsing a MIME message, and outputting its decoded components to a given directory: use MIME::Parser; ### Create parser, and set some parsing options: my $parser = new MIME::Parser; $parser->output_under("$ENV{HOME}/mimemail"); ### Parse input: $entity = $parser->parse(\*STDIN) or die "parse failed\n"; ### Take a look at the top-level entity (and any parts it has): $entity->dump_skeleton;
You should use MIME::Tools. If it's because you didn't want to install it, a quick
perl -MCPAN -e "install MIME::Tools"

will do the job for you.

And remember, even for a one-time task you are better off reusing existing code. Some may say that doing otherwise is a form of "False Impatience" :-)