Supressing Null in a Do-loop












1












$begingroup$


I'm trying write a Do-loop that creates batch files that run .exe files with input parameters. I have to rename to *.bat since Export doesn't like outputting batch files. The output produces batch files with the text of the form:



Analyze.exe Calibration_# Null [input parameters]


which doesn't run due to the Null.



How would I go about suppressing the Null in this case?



I'd also like to change input parameters, but it seems that Do likes inserting Null. I've tried DeleteCases Null, but it's baked into the string, so that doesn't work. 



Do[

  shotN = n;



  DeleteFile[{"1.bat", "2.bat"}];

  Export["1.txt", 

    StringReplace[

      "Analyze1.exe Calibration_xx [input parameters]",  

      "xx" -> ToString[shotN]]];



  Export["2.txt", 

    StringReplace[

     "Analyze2.exe Calibration_xx [input parameters]", 

     "xx" -> ToString[shotN]]];



 RenameFile["1.txt", "1.bat"];

 RenameFile["2.txt", "2.bat"];



 Run["1.bat"]

 Run["2.bat"]



 , {n, 1, 10}]





export







share|improve this question











$endgroup$








  • 2




    $begingroup$
    Try Export["filename.bat", <<string>>, "Text"]. That should get you rid of the need for Rename. And separate the Runs by semicoli (;).
    $endgroup$
    – Henrik Schumacher
    4 hours ago












  • $begingroup$
    That seemed to do the trick! Many thanks!
    $endgroup$
    – 2close2see
    4 hours ago
















1












$begingroup$


I'm trying write a Do-loop that creates batch files that run .exe files with input parameters. I have to rename to *.bat since Export doesn't like outputting batch files. The output produces batch files with the text of the form:



Analyze.exe Calibration_# Null [input parameters]


which doesn't run due to the Null.



How would I go about suppressing the Null in this case?



I'd also like to change input parameters, but it seems that Do likes inserting Null. I've tried DeleteCases Null, but it's baked into the string, so that doesn't work. 



Do[

  shotN = n;



  DeleteFile[{"1.bat", "2.bat"}];

  Export["1.txt", 

    StringReplace[

      "Analyze1.exe Calibration_xx [input parameters]",  

      "xx" -> ToString[shotN]]];



  Export["2.txt", 

    StringReplace[

     "Analyze2.exe Calibration_xx [input parameters]", 

     "xx" -> ToString[shotN]]];



 RenameFile["1.txt", "1.bat"];

 RenameFile["2.txt", "2.bat"];



 Run["1.bat"]

 Run["2.bat"]



 , {n, 1, 10}]





export







share|improve this question











$endgroup$








  • 2




    $begingroup$
    Try Export["filename.bat", <<string>>, "Text"]. That should get you rid of the need for Rename. And separate the Runs by semicoli (;).
    $endgroup$
    – Henrik Schumacher
    4 hours ago












  • $begingroup$
    That seemed to do the trick! Many thanks!
    $endgroup$
    – 2close2see
    4 hours ago














1












1








1





$begingroup$


I'm trying write a Do-loop that creates batch files that run .exe files with input parameters. I have to rename to *.bat since Export doesn't like outputting batch files. The output produces batch files with the text of the form:



Analyze.exe Calibration_# Null [input parameters]


which doesn't run due to the Null.



How would I go about suppressing the Null in this case?



I'd also like to change input parameters, but it seems that Do likes inserting Null. I've tried DeleteCases Null, but it's baked into the string, so that doesn't work. 



Do[

  shotN = n;



  DeleteFile[{"1.bat", "2.bat"}];

  Export["1.txt", 

    StringReplace[

      "Analyze1.exe Calibration_xx [input parameters]",  

      "xx" -> ToString[shotN]]];



  Export["2.txt", 

    StringReplace[

     "Analyze2.exe Calibration_xx [input parameters]", 

     "xx" -> ToString[shotN]]];



 RenameFile["1.txt", "1.bat"];

 RenameFile["2.txt", "2.bat"];



 Run["1.bat"]

 Run["2.bat"]



 , {n, 1, 10}]





export







share|improve this question











$endgroup$




I'm trying write a Do-loop that creates batch files that run .exe files with input parameters. I have to rename to *.bat since Export doesn't like outputting batch files. The output produces batch files with the text of the form:



Analyze.exe Calibration_# Null [input parameters]


which doesn't run due to the Null.



How would I go about suppressing the Null in this case?



I'd also like to change input parameters, but it seems that Do likes inserting Null. I've tried DeleteCases Null, but it's baked into the string, so that doesn't work. 



Do[

  shotN = n;



  DeleteFile[{"1.bat", "2.bat"}];

  Export["1.txt", 

    StringReplace[

      "Analyze1.exe Calibration_xx [input parameters]",  

      "xx" -> ToString[shotN]]];



  Export["2.txt", 

    StringReplace[

     "Analyze2.exe Calibration_xx [input parameters]", 

     "xx" -> ToString[shotN]]];



 RenameFile["1.txt", "1.bat"];

 RenameFile["2.txt", "2.bat"];



 Run["1.bat"]

 Run["2.bat"]



 , {n, 1, 10}]





export




export






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 4 hours ago









m_goldberg

86k872196




86k872196










asked 4 hours ago









2close2see2close2see

333




333








  • 2




    $begingroup$
    Try Export["filename.bat", <<string>>, "Text"]. That should get you rid of the need for Rename. And separate the Runs by semicoli (;).
    $endgroup$
    – Henrik Schumacher
    4 hours ago












  • $begingroup$
    That seemed to do the trick! Many thanks!
    $endgroup$
    – 2close2see
    4 hours ago














  • 2




    $begingroup$
    Try Export["filename.bat", <<string>>, "Text"]. That should get you rid of the need for Rename. And separate the Runs by semicoli (;).
    $endgroup$
    – Henrik Schumacher
    4 hours ago












  • $begingroup$
    That seemed to do the trick! Many thanks!
    $endgroup$
    – 2close2see
    4 hours ago








2




2




$begingroup$
Try Export["filename.bat", <<string>>, "Text"]. That should get you rid of the need for Rename. And separate the Runs by semicoli (;).
$endgroup$
– Henrik Schumacher
4 hours ago






$begingroup$
Try Export["filename.bat", <<string>>, "Text"]. That should get you rid of the need for Rename. And separate the Runs by semicoli (;).
$endgroup$
– Henrik Schumacher
4 hours ago














$begingroup$
That seemed to do the trick! Many thanks!
$endgroup$
– 2close2see
4 hours ago




$begingroup$
That seemed to do the trick! Many thanks!
$endgroup$
– 2close2see
4 hours ago










1 Answer
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$begingroup$

The Runs need to be separated by semicoli. Moreover, you may use the export filter "Text" independent of the file type. This removes the need (i) to delete potentially preexistent files and (ii) to rename the files after export. Also StringJoin (<>) might become your friend.



Do[

 Export[

  "1.bat", 

  "Analyze1.exe Calibration_" <> ToString[n] <> " [input parameters]",

  "Text"];

 Export[

  "2.bat", 

  "Analyze2.exe Calibration_" <> ToString[n] <> " [input parameters]",

  "Text"];

 Run["1.bat"];

 Run["2.bat"];

 , {n, 1, 10}]





share|improve this answer









$endgroup$













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    $begingroup$

    The Runs need to be separated by semicoli. Moreover, you may use the export filter "Text" independent of the file type. This removes the need (i) to delete potentially preexistent files and (ii) to rename the files after export. Also StringJoin (<>) might become your friend.



    Do[
    
 Export[
    
  "1.bat", 
    
  "Analyze1.exe Calibration_" <> ToString[n] <> " [input parameters]",
    
  "Text"];
    
 Export[
    
  "2.bat", 
    
  "Analyze2.exe Calibration_" <> ToString[n] <> " [input parameters]",
    
  "Text"];
    
 Run["1.bat"];
    
 Run["2.bat"];
    
 , {n, 1, 10}]





    share|improve this answer









    $endgroup$


















      3












      $begingroup$

      The Runs need to be separated by semicoli. Moreover, you may use the export filter "Text" independent of the file type. This removes the need (i) to delete potentially preexistent files and (ii) to rename the files after export. Also StringJoin (<>) might become your friend.



      Do[
      
 Export[
      
  "1.bat", 
      
  "Analyze1.exe Calibration_" <> ToString[n] <> " [input parameters]",
      
  "Text"];
      
 Export[
      
  "2.bat", 
      
  "Analyze2.exe Calibration_" <> ToString[n] <> " [input parameters]",
      
  "Text"];
      
 Run["1.bat"];
      
 Run["2.bat"];
      
 , {n, 1, 10}]





      share|improve this answer









      $endgroup$
















        3












        3








        3





        $begingroup$

        The Runs need to be separated by semicoli. Moreover, you may use the export filter "Text" independent of the file type. This removes the need (i) to delete potentially preexistent files and (ii) to rename the files after export. Also StringJoin (<>) might become your friend.



        Do[
        
 Export[
        
  "1.bat", 
        
  "Analyze1.exe Calibration_" <> ToString[n] <> " [input parameters]",
        
  "Text"];
        
 Export[
        
  "2.bat", 
        
  "Analyze2.exe Calibration_" <> ToString[n] <> " [input parameters]",
        
  "Text"];
        
 Run["1.bat"];
        
 Run["2.bat"];
        
 , {n, 1, 10}]





        share|improve this answer









        $endgroup$



        The Runs need to be separated by semicoli. Moreover, you may use the export filter "Text" independent of the file type. This removes the need (i) to delete potentially preexistent files and (ii) to rename the files after export. Also StringJoin (<>) might become your friend.



        Do[
        
 Export[
        
  "1.bat", 
        
  "Analyze1.exe Calibration_" <> ToString[n] <> " [input parameters]",
        
  "Text"];
        
 Export[
        
  "2.bat", 
        
  "Analyze2.exe Calibration_" <> ToString[n] <> " [input parameters]",
        
  "Text"];
        
 Run["1.bat"];
        
 Run["2.bat"];
        
 , {n, 1, 10}]






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 4 hours ago









        Henrik SchumacherHenrik Schumacher

        53.2k471148




        53.2k471148






























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