http://www.perlmonks.org?node_id=788308


in reply to Password question

What are you trying to achive with that password? Forbid the user to execute the script? Since Perl scripts have to be readable in order to be executable, a smart user could copy the script, remove the part requesting a password and then execute it.

OTOH, you could jail the script with permissions and a suid/sgid wrapper in C, but maybe this is too overkill depending on what you want.