If you are using Jenda's Win32::Deamon::Simple, then test the global $CMDLINE. If not, look at the BEGIN block in that module for how he decides whether to set it true or false.
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.