debug();
    int pipefd[2];
    pid_t cpid1;
    pid_t cpid2;
    if (pipe(pipefd) == -1)
    {
        perror("pipe");
        _exit(EXIT_FAILURE);
    }

    cpid1 = fork();
    if (cpid1 == 0)
    {
        close(1);
        if(dup2(pipefd[1], 1) == -1) perror("dup2"); if(close(pipefd[1]) == -1) perror("close");
        close(pipefd[0]);
        if(execvp(node->pipe.parts[0]->command.program,node->pipe.parts[0]->command.argv)==0) perror("Error pipe");
        close(pipefd[0]);
        close(pipefd[1]);
        }


    else
    {
        cpid2 = fork();
        if (cpid2 == 0)
        {
            close(0);
            if(dup2(pipefd[0], 0) == -1) perror("dup2"); if(close(pipefd[0]) == -1) perror("close");
            close(pipefd[1]);
            if(execvp(node->pipe.parts[1]->command.program,node->pipe.parts[1]->command.argv)==0) perror("Error pipe");
            close(pipefd[0]);
            close(pipefd[1]);
        }

        else
        {
            exit(-1);
        }
    }