#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int main(void)
{
	int n,fd[2];
	pid_t pid;
	char line[50];
	if(pipe(fd)<0)
		printf("pipe error");
	if((pid=fork())<0)
		printf("fork error");
	else if (pid > 0)
	{
		close (fd[0]);
		write (fd[1],"hello world \n",12);
	}
	else
	{
		close (fd[1]);
		n=read(fd[0],line,50);
		write(1,"recieved messege is : ",22);
		write(1,line,n);
	}
	exit(0);
}