#include	<sys/types.h>
#include	<sys/wait.h>
#include <stdio.h>
#include <stdlib.h> /* for exit */
#include <unistd.h>

int main(void)
{
   printf("This is my program before becoming a clock PID= %d\n",getpid());
   if (execlp("ping","ping", "www.usm.cl", (char *) 0) < 0)
      printf("execlp error. \n");
   printf("This message will not show up\n");
   exit(0);
}