Umm, sure since you interrupted me in the zone I might as well help you, what is it?
I can't install this USB device?
(thinking to self)You're supposedly a tech savvy IT professional with a decade of experience and the first thing you think of when you can't get a 3rd party USB device working is talk to software engineering since hey you know, co-location human interaction. Oh and you plug it in and it shows up as a serial port
Step 1 Display something and let the user/ai enter a response
Step 2 Always reject every response
See, works as well as those 2 schemes and is much easier to implement.(I'm only being somewhat sarcastic btw.)
egrep patterns are full regular expressions; it uses a fast deterministic algorithm that sometimes needs exponential space. -- unix manuals