How do I run a command line level OS command from Vugen

Cause -

User is attempting to execute an OS command from Vugen.

Solution -

LoadRunner provides a documented function which enables the execution of an OS command from within a script. The following code demonstrates running a remote "ping" command on a LoadRunner Injector. Note that in this case the output of the command is being written to a file, which is then read and displayed as a message in the script logs.

The function used to call the command is "system(command)" where command is a character array containing the command to be executed.

Action()
{
 char command[] = "ping xxx.xxx.xxx.xxx > c:\\temp\\ping.txt";
 char line[1000], ch;
    long file_stream;
    char *filename = "c:\\temp\\ping.txt";
 extern int errno;

 lr_output_message("Sending command : %s ", command);

    system(command);

     if ((file_stream = fopen(filename, "r")) == NULL ) {

          lr_error_message("Cannot open %s", filename);
          return -1;
     }

     /* Get the first 1000 chars from the file */

  if (fread(line, sizeof(char), 1000, file_stream) == NULL)

          lr_output_message("fread error" );
     else
          lr_output_message( "Command response is : \"%s\"", line);

     if (fclose(file_stream))
          lr_error_message("Error closing file %s", filename);

/* Delete the temporary file */

  if (remove(filename) == 0)
          lr_output_message("Removed temp file %s", filename);
     else
          lr_output_message("Unable to remove %s error %d", filename, errno);

 return 0;
}