set FIRST=1
  set  UpperLowerCase=  Case
set    SpaceAfter  =Space!

@echo off
echo FIRST=%FIRST%
echo UpperLowerCase=%UpperLowerCase%
echo UPPERLOWERCASE=%UPPERLOWERCASE%
echo SpaceAfter =(%SpaceAfter  %)

set FIRST=2
echo FIRST=%FIRST%

pause
