in reply to Logging script usage when executed via sudo on *nix

I think sudo sets some environment variables that you can check for in your perl script...

From the sudo manpage: 

SUDO_USER              Set to the login of the user who invoked sudo
SUDO_UID               Set to the uid of the user who invoked sudo
SUDO_GID               Set to the gid of the user who invoked sudo

[download]

-Blake

In Section Seekers of Perl Wisdom