> But is there any better ways to work it out ? you could get the ip of the interface that the default route is going through:
route -n get default | grep 'if address' | sed 's/.*: //'
or ask ifconfig what is in the egress group and assume the first ip
on the first interface will be ok:
ifconfig egress | grep 'inet ' | head -n1 | awk '{ print $2 }'
