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

int main(void) {
    char buf[100];
    char msg[] = "Mario";

    int p[2];
    pipe(p);

    write(p[1], msg, sizeof(msg));
    read(p[0], buf, sizeof(msg));

    printf("Out from the pipe: `%s`\n", buf);
}