That's neat.
I found out the repo for that one (wasn't mentioned on the link Kayce provided):
But seems there's an issue where node v7 removed eventEmitter and the `devtools-terminal --install` is broken.
I'm trying to make it work here, but it's a cool thing. I have grunt commands to run from time to time.
I agree with Phistuck, it shouldn't be a browser's responsibility because that would be tying browser to the OS imo.. I mean, chrome would have to deal with calls to Windows' CMD, OSX's Terminal, Linux's whatever (lol)