@echo off
C:
if not exist C:\backup mkdir C:\backup
cd C:\backup
if not exist %date:~0,4% mkdir %date:~0,4%
cd %date:~0,4%
if not exist %date:~5,2% mkdir %date:~5,2%
cd %date:~5,2%
if not exist %date:~8,2% mkdir %date:~8,2%
cd %date:~8,2%
explorer .