+
+get_mac ()
+{
+ mac=""
+
+ for adaptor in /sys/class/net/*
+ do
+ status="$(cat ${adaptor}/iflink)"
+
+ if [ "${status}" -eq 2 ]
+ then
+ mac="$(cat ${adaptor}/address)"
+ mac="$(echo ${mac} | sed 's/:/-/g' | tr '[a-z]' '[A-Z]')"
+ fi
+ done
+
+ echo ${mac}
+}