Hi,

  There are So many complex methods for that but i write the most effective and simple one  just write this ..

// program name avi.c

#include<stdlib.h>

void main()

{ //// write ur program logic here

getch();

system("type avi.c");

}

by the use of this system function from stdlib.h u can run any dos command from ur c program but please check the output for this only by running the exe of ur program ( in this case avi.exe)

Regards ,

Avinash Chaturvedi( Avi )