If useful here is a function for getting google cloud IP's. get_google() { for line in $(dig +short txt _cloud-netblocks.googleusercontent.com | tr

If useful here is a function for getting google cloud IP's. get_google() { for line in $(dig +short txt _cloud-netblocks.googleusercontent.com | tr " " "\n" | grep include | cut -f 2 -d :) do dig +short txt "${line}" done | tr " " "\n" | grep ip4 | cut -f 2 -d : | sort -n | uniq }