On: PowerShell is open sourced and is available on Lin...

[jaykru]

Not quite what you're looking for, but arguably better: https://msdn.microsoft.com/en-us/commandline/wsl/about

Been playing with it ever since I got a new Windows laptop for college (I usually would have installed Debian but I prefer OneNote to notetaking apps on available on Linux). The interesting part is that it's not a VM; the LoW subsystem translates Linux syscalls to Win32 ones