Batch datei spuckt nach for f in der for l schleife nicht die varbiablen aus!

dir /b *.txt>>list.tmp
for /f "delims=: tokens=1,2*" %%a in ('findstr /n . "list.tmp"') do (set znt=%%a  
set list%%a=%%b
setlocal enabledelayedexpansion
echo !list2%%a: =^_!>>list2.tmp
endlocal
)

for /f "delims=: tokens=1,2*" %%a in ('findstr /n . "list.tmp"') do (set list2%%a=%%b)  

for /l %%a in (1, 1, %znt%) do (ren %%list%%a%% %%list2%%a%%)

C:\Users\grandits\Desktop\Batch>2

C:\Users\grandits\Desktop\Batch>dir /b *.txt 1>>list.tmp

C:\Users\grandits\Desktop\Batch>for /F "delims=: tokens=1,2*" %a in ('findstr /n  
 . "list.tmp"') do (  
set znt=%a
 set list%a=%b
 setlocal enabledelayedexpansion
 echo !list2%a: =_! 1>>list2.tmp
 endlocal
)

C:\Users\grandits\Desktop\Batch>(
set znt=1
 set list1=Merle Haggard.txt
 setlocal enabledelayedexpansion
 echo !list21: =_! 1>>list2.tmp
 endlocal
)

C:\Users\grandits\Desktop\Batch>for /F "delims=: tokens=1,2*" %a in ('findstr /n  
 . "list2.tmp"') do (set list2%a=%b )  

C:\Users\grandits\Desktop\Batch>(set list21=Merle_Haggard.txt)

C:\Users\grandits\Desktop\Batch>for /L %a in (1 1 1) do (ren %list%a% %list2%a%
)

C:\Users\grandits\Desktop\Batch>(ren %list1% %list21% )
Das System kann die angegebene Datei nicht finden.