From: klee@unibwm.de   
      
   On 21.02.2018 11:53, Jean-Pierre Coulon wrote:   
   > I want to set a variable to "mycommand p1.jpg p2.jpg p3.jpg" with a variable   
   > numbers of jpg's. I wrote this batch:   
   >   
   > set myorder=mycommand   
   > for /L %%a in (1, 1, %1) do (   
   > set myorder=!myorder! p%%a.jpg   
   > echo %%a   
   > echo %myorder%   
   > )   
      
   use (with delayedexpansion):   
      
   setlocal enabledelayedexpansion   
   set myorder=mycommand   
   for /L %%a in (1, 1, %1) do (   
   set myorder=!myorder! p%%a.jpg   
   echo %%a   
   echo !myorder!   
   )   
   echo %myorder%   
      
      
      
   or (without delayedexpansion):   
      
   set myorder=mycommand   
   for /L %%a in (1, 1, %1) do (   
   call set myorder=%%myorder%% p%%a.jpg   
   echo %%a   
   call echo %%myorder%%   
   )   
   echo %myorder%   
      
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