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

int main(void)
{
   printf("Hello! ");
   printf("Exec'd process (%d) has parent %d\n",
          getpid(), getppid());
          
   char *value = getenv("HOME");
   printf("Environment variable 'HOME' has value '%s'\n", value);

   sleep(10);
   return 2; //exit(2);
}