#!/bin/ash

oldnum=meh
oldinfo=""
oldiface=""

ip -o addr | while read num iface stuff
do

if [ "$num" != "$oldnum" ]
then
	c=`echo $oldinfo | egrep "inet|inet6" | awk '{print $2}' | egrep -v "^f
e80:" | wc -l`
	oldinfo="$stuff"
	oldnum="$num"
	if [ $c -gt 0 ]
	then
		case $oldiface in
			lo:) ;;
			*) echo $oldiface | cut -f1 -d:
		esac
	fi
	oldiface=$iface
else
	oldinfo=`echo -e "$oldinfo\n$stuff"`
fi

done