I think this need to be run from the Management Shell rather than the console, it sounds like the module isn't being imported into the Powershell console. You can add the module by running:
Add-PSSnapin Microsoft.Sharepoint.Powershell
in the Powershell console.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…