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3.8	power		

	abstract: Get node power reading
		
	usage	: java -jar GbtUtility-2.1.76.jar [options] power
	
	output	: Show target power reading.

	Example	:
		  by node list	 : java -jar GbtUtility-2.1.76.jar power
		  by single host : java -jar GbtUtility-2.1.76.jar -H 10.1.27.79 power
		  by scan host	 : java -jar GbtUtility-2.1.76.jar -S rmcp,10.1.27.1,10.1.27.100 power
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