Invoke-AzureResourceAction : The term 'Invoke-AzureResourceAction' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
You're might be using some out of date docs. Try "Invoke-AzureRmResourceAction" instead (add the "Rm").
Oh, and if you then get this (because you're automating things):
Invoke-AzureRmResourceAction : Windows PowerShell is in NonInteractive mode. Read and Prompt functionality is not available.
Try adding "-Force" to run the command without prompting for interactive confirmation.