VPN/Routing script

vpn.sh

#! /bin/bash
PPPOE=HCSC
IFNAME=utun0
SUBNET="10.0.0.0/8"
if [ $(id -u) != "0" ]
then
    echo "Running using sudo.."
    sudo "$0" "$@"
    exit $?
fi

GATEWAY="$(route -n get 8.8.8.8 | grep gateway | awk '{print $2}')"
echo "Detected gateway to be $GATEWAY"
scutil --nc start $PPPOE
while ! ifconfig | grep $IFNAME > /dev/null; do
    sleep .2
done
sleep 1
route change default $GATEWAY
route add -net $SUBNET `ifconfig $IFNAME | grep inet | awk '{print $2}'`

Grabs the default route, connects to the VPN, waits for the connection and then splits the routing