#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>


int main ()
{

  pid_t pid;
  
  pid=fork();
  
  if (pid < 0)
  {
    fprintf(stderr, "Fork failed");
	exit (-1);
	}
	 
  else if (pid == 0)
  {
    execlp ("/bin/sh", "sh", NULL);
   }
   
  else 
  {
    wait(NULL);
	printf("child complete \n");
	exit(0);
	}
}