echo off
set BUILDNUMBER=0
for /f "tokens=* delims= " %%a in ('dir /b /s %temp%\*.txt') do ( set FILENAME=%%a )
set /p BUILDNUMBER=<%FILENAME%
echo %BUILDNUMBER%
echo off
set BUILDNUMBER=0
for /f "tokens=* delims= " %%a in ('dir /b /s %temp%\*.txt') do ( set FILENAME=%%a )
set /p BUILDNUMBER=<%FILENAME%
echo %BUILDNUMBER%