The linux version didn't seem to work for me. I suspect the output for claymore-eth isnt being parsed properly. I created a couple of issues here too: https://github.com/coinscrow/minerstat-linux/issues

In an effort to understand things better I started implementing my own version in python: https://github.com/dpnova/pynerstat - I feel the code is a bit clearer etc.. if unfinished If there's interest, I'll happily continue to maintain it. It's worth noting that with a small amount of work the python one would run on windows too.

Cheers