#!/bin/sh
#v1.0, 2018-11-12, Andreas Vogel

IFS=$'\n'
devlist=(`networksetup -listnetworkserviceorder | grep Hardware | sed -e 's/^(H.*rt: \(.*\), Device: \(.*\))/\1/' -e 's/[()\*#]//g' | uniq`)

tLen=${#devlist[@]}

echo My device list:
for (( i=0; i<${tLen}; i++ ));
do 
/usr/sbin/networksetup -setdnsservers "${devlist[$i]}" 10.90.239.31 10.90.239.4 10.90.192.199
done
echo

exit 0