#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <wait.h>
#include <sys/types.h>
int main(int argc, char *argv[])
{
	pid_t child;
	int loop, count, check, status = 0;
	/* must have exactly ONE parameter */
	if(argc!=2)
	{
		printf("Usage: '%s' <count>\n",argv[0]);
		return -1;
	}
	/* get count from command line */
	count = atoi(argv[1]);
	if(!count)
	{
		printf("No child required? Abort!\n");
		return -2;
	}
	/* loop to create child */
	for(loop=0;loop<count;loop++)
	{
		child = fork();
		if(child == 0)
		{
			child = getpid();
			printf("I am a child %d\n",child);
			status = child;
			break;
		}
		else
		{
			waitpid(child,&check,0);
			if(WIFEXITED(check))
				printf("Child ended with %d\n",WEXITSTATUS(check));
				/** note: WEXITSTATUS grabs just the LSByte */
		}
	}
	/* parent text here! */
	if(!status)
	{
		printf("I am a parent - just created %d sub-process(es)\n",count);
	}
	return status;
}