#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>
int main(int argc, char const *argv[])
{
	int p=fork();
	if(p==0){
		execl("./process1",NULL,NULL);
		printf("Exec() is error.\n");
		exit(1);
	}else if(p>0){
		waitpid(p,NULL,0);
		printf("child: %d.\n",p);
	}else{
		printf("Failed to create child.\n");
		exit(1);
	}
	return 0;
}