/gateway/{if(found){gateway=$NF}}
/dns-nameservers/{if(found){dnsnameservers=$NF}}
END{print address" "netmask" "broadcast" "gateway" "dnsnameservers}' /etc/network/interfaces >"$TMP"
/gateway/{if(found){gateway=$NF}}
/dns-nameservers/{if(found){dnsnameservers=$NF}}
END{print address" "netmask" "broadcast" "gateway" "dnsnameservers}' /etc/network/interfaces >"$TMP"