#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
//ps -ef
//ps -u angf -o pid,ppid,stat,command

int main(void) {
    int i = 0;
    //while (1) {
        printf("In process_example main %d\n", i);
        printf("P: my pid is %d.\n", getpid()); 
        printf("P: my parent is %d.\n", getppid());
        i++;
    //}
    sleep(15);
   
    return 0;
}