Yep. Trips me up every time I switch platforms. At least I don't have to use COLONS on Mac OS any more!
I'm pretty sure that several of the Linux console emulators like MSys, Cygnus and MINGW32 did the slash-switching for me.
ArsTechnica explains "Why Microsoft Needed to Make Windows Run Linux Software"
http://arstechnica.com/information-technology/2016/04/why-microsoft-needed-t...
It's an interesting article, with opinions I might argue with, but it presents an interesting point of view.