dd-wrt check if OpenVPN server is alive

check_ovpn.sh

#!/bin/sh
# This script checks if OpenVPN Server is alive.
# If not openpvn server will be started.
# Put this script in jffs/scripts/check_ovpn.sh.
# Call it via cron job (GUI -> Administration -> Management): */1 * * * * root /jffs/scripts/check_ovpn.sh 
# This will trigger the script in 1 minute intervall.
OPENVPN_ALIVE=`ps | grep -v grep | grep -c "openvpn --daemon"`

if [ "$OPENVPN_ALIVE" -eq 0 ]; then
        #echo "openvpn is down"
        `openvpn --daemon --config /tmp/openvpn/openvpn.conf`
fi