I do a lot of PERL scripting for a small company to do various sysadmin tasks on the LP subsystem of several HP-UX systems. I'd like to think my code is fairly bulletproof, but I'm not a perl expert yet, and these scripts are usually running as 'lp' or 'root'. (an unfortunate necessity for much of the LP subsystem). Can anyone give me a few scripting tips I can follow so I'm not opening up a buffer overflow hole or some other exploit?