I see that PowerCommands for Visual Studio 2010 supports visual studio 2012, but it was last updated in Aug 2010. Is there a new "PowerCommands for Visual Studio 2012" or is there a viable replacement?
You don't need a replacement. If you install the Power Commands again, from within VS 2012 (Tools -> Extensions and Updates), it will be applied to VS 2012.
From here:
Just reinstall, even if you already have it for VS2010. The reinstall will then apply it to VS 11
I just did it, and it worked perfectly.
Edit
Microsoft Visual Studio Team Foundation Server 2012 Update 1 Power Tools
For Visual Studio 2013, it looks like Power Commands is now part of Power Productivity Tools.
I ended up using VSCommands for Visual Studio 2012. This tool provided all I needed from PowerCommands and more.
Most of what was in the Productivity Power Tools are now part of VS 2012. There are a few items missing, afaik, what are you looking for in particular ?
As mentioned on the Productivity Power Tools 2012 page, the Power Commands were added to that addon.
Download the VS2010/2012 version from the VS Gallery.
Unzip the .vsix to a folder (i.e. using the great 7zip), it's just a zip file.
Edit the extension.vsixmanifest file and add this element after the 11.0 one:
<VisualStudio Version="12.0">
<Edition>Pro</Edition>
</VisualStudio>
Repeat for every future version of VS that comes out ;)
Now re-zip the contents (files, not the root folder, so that the extension.vsixmanifest is at the root of the zip file, not within a folder), rename the zip file to .vsix, and double-click to install to all your newly supported editions.
Enjoy!
来源：https://stackoverflow.com/questions/12156921/powercommands-for-visual-studio-2012