From: klee@unibwm.de   
      
   On 26.08.2019 18:54, Anton Shepelev wrote:   
   > Herbert Kleebauer:   
      
      
   > Why does the following script return 5 instead of 6?   
   >   
   > @echo off   
   > SETLOCAL ENABLEDELAYEDEXPANSION   
   > SET S=0;   
   > for /L %%i IN (1,1,3) DO SET /A S=!S!+%%i & echo Summing: %%i   
   > echo Result:  %S%   
      
   Because you should have used:   
      
   @echo off   
   SETLOCAL ENABLEDELAYEDEXPANSION   
   SET S=0   
   for /L %%i IN (1,1,3) DO SET /A S=!S!+%%i & echo Summing: %%i   
   echo Result:  %S%   
      
      
      
   > I mean in situation similar to the above.  For exam-   
   > ple, how to set a variable to a comma-separated list   
   > of files in a directory?   
      
   echo a>a.txt   
   echo b>b.txt   
   echo c>c.txt   
   set list=   
   for  %%i in (*.txt) do call set list=%%list%%,%%i   
   echo %list%   
      
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