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#!/bin/bash
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# Thanks to the people at:
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# http://www.linuxquestions.org/questions/programming-9/using-grep-and-awk-to-get-ip-address-627626/
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echo $(expr "`ifconfig $1`" : '.*inet addr:\([^ ]*\).*')
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#ifconfig ${EXTIF}| awk -F ' *|:' '/inet addr/{print $4}'
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