SharePoint 2013 STSADM to PowerShell equivalent commands
Before SharePoint 2010, the only way to manage SharePoint at the command line was Stsadm However, in SharePoint 2010 and later, Stsadm was depreciated and replaced by PowerShell.
In SharePoint 2013 Preview, Stsadm still there and can be used, however Microsoft suggests to use PowerShell commands instead.
Therefore if you are still using Stsadm, Microsoft released a list of all the Stsadm commands and their equivalent in PowerShell to encourage you to make the switch.
Also, if you missed it, Here are the top free resources for SharePoint 2013 that came out in October.