#include <sys/types.h>  /* Primitive System Data Types */
#include <stdio.h>      /* Input/Output */
#include <unistd.h>     /* Symbolic Constants */
#include <stdlib.h>     /* General Utilities */

/* loads the environment variables (i.e. PATH) */
extern char **environ;

/* forks 10 new processes, each of which uses execve() to run ps */
int main()
{
  pid_t pid;  /* variable to store the child's pid */
  int i;
  for (i = 0; i < 10; i++)
  {
    pid = fork();   /* create a child process */
    /* if the fork() failed, exit with -1 */
    if (pid < 0)
    {
      fprintf(stderr, "Fork Failed");
      exit(-1);
    }
    /* else if this is the child thread, execve(ps) */
    else if (pid == 0)
    {
      execve("/bin/ps", NULL, NULL);
    }
    /* if this is the parent thread, wait until
     * the child returns then go fork another process */
    else
    {
      wait(NULL);
      printf("Child Complete\n");
    }
  }
  exit(0);
}