in reply to perl debugger command history
You need to install Term::ReadLine::Perl and/or Term::ReadLine::Gnu. The Term::ReadLine that is in the core is only a stub, and doesn't give you command history.
If you go into the CPAN shell and install Bundle::CPAN, this is included in the essential goodies.
Oh Lord, won’t you burn me a Knoppix CD ?
My friends all rate Windows, I must disagree.
Your powers of persuasion will set them all free,
So oh Lord, won’t you burn me a Knoppix CD ?
(Missquoting Janis Joplin)