openvpn - handle dns entries

vpn-company.sh

#!/usr/bin/env sh

# alternative to: openvpn-update-resolv-conf: aur package
# I don't want to install a openvpn script to just handle dns entries for a VPN connection
# So, I created this script to do it
if ps ax | grep "openvpn --config" | grep "OPENVPN_CONFIG_PROVIDED_BY_COMPANY.ovpn" > /dev/null
then
    echo "VPN CONNECTED"
    echo "restoring resolv.conf..."
    sudo sed -i '/DNS_SERVER_IP/d' /etc/resolv.conf
    echo "disconnecting from vpn..."
    sudo killall openvpn
else
    echo "VPN DISCONNECTED"
    echo "changing resolv.conf..."
    sudo sed -i "2i nameserver DNS_SERVER_IP" /etc/resolv.conf
    echo "connecting to vpn"
    cd $HOME/.vpn
    sudo openvpn --config /etc/openvpn/client/OPENVPN_CONFIG_PROVIDED_BY_COMPANY.ovpn
fi