Execute Batch File from within C Code

CJE · #1 08-Mar-2005, 10:50

I am writing a command line C program for the windows 2000/XP environments.

How do I execute/call a batch file from within my c code?

Thanks!

davekw7x · #2 08-Mar-2005, 13:33

Quote:

Originally Posted by CJE

I am writing a command line C program for the windows 2000/XP environments.

How do I execute/call a batch file from within my c code?

Thanks!

An easy way is with the system() function.

If your batch file is in the same directory as the executable, or is in the %path% of executables for your machine, just use something like this

CPP / C++ / C Code:

  system("batchfilename.bat xxx yyy");

Where xxx and yyy are arguments to the batch file named batchfilename.bat.

If the batch file is somewhere else, then you have to include the directory path. Suppose you put all of your batch files in directory F:\bin. Then you would have something like this:

CPP / C++ / C Code:

  system("f:\\bin\\batchfilename.bat xxx yyy");

You don't really need the .bat

Anything that you can enter from the command line can be done with the system() call.

Here's a program example:

CPP / C++ / C Code:

#include <stdio.h>
#include <stdlib.h>

int main()
{

  printf("Calling batch file doit.bat\n");
  system("doit Hello. theansweris: 42");
  printf("Press \'Enter\' to exit the program\n");
  getchar();
  return 0;
}

You can try it with this batch file

Code:

@rem This is the batch file doit.bat
@echo.
@echo.
@echo.
@echo In doit.bat:
@echo.
@echo.
@echo.
@echo argument #1 is ^"%1^"
@echo argument #2 is ^"%2^"
@echo argument #3 is ^"%3^"
@echo.
@echo.
@echo Tttttthat's all, folks!
@echo.
@echo.

Regards,

Dave

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