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I don't think Microsoft intended Powershell to be a *nix equivalent.
Having learned to use several of its commands prior to retirement, and writing a utility around them to help my former coworkers after I left, I found PS to be clunky and, in my opinion, not well-designed.
It also appeared, to me, that many of the Window 7 interface components were built around, or in, PS.
I had to use Win 7 at work as the company is about 90-percent a Microsoft shop.
At home I use Linux Mint 17.1 (currently) and a couple of Macs running OS X 10.7.