Dos Command in C

This example will show how to use the DOS command in C and rediret its output to a file..

#include <stdio.h>
#include<conio.h>
void main ()
{
  FILE *fp;
  clrscr();
  printf ("Checking if processor is available...");
  if (system(NULL))
  {
  puts ("Ok");
  }
  else
  {
  printf("Processor is not available");
  getch();
  exit (1);
  }
  system ("dir>c:\dirlist.txt");
  printf("Done!!File created");
getch();
}

output:will create the file with name dirlist in the "c:\" drive..........