Внешний IP-адрес из cmd

@echo off
nslookup myip.opendns.com resolver1.opendns.com > %TEMP%\myip.txt
FOR /F "skip=4 delims=: tokens=2" %%a in (%TEMP%\myip.txt) do set myipp1=%%a
FOR /F "usebackq delims= tokens=*" %%i in (`echo %myipp1%`) do set myipp2=%%i
echo %myipp2%> %TEMP%\showme_myip.txt
start notepad %TEMP%\showme_myip.txt