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

extern int errno;
int main(int argc, char *argv[])
{
        int n_char = 0, buffer[10];
        printf("n_char = %d \t errno = %d \n", n_char, errno);
        n_char = write(1, "Enter a word: ", 14);
        n_char = read(0, buffer, 10);
        printf("\nn_char = %d \t errno = %d \n", n_char, errno);
        if(n_char == -1)
        {
                perror(argv[0]);
                exit(1);
        }
        n_char = write(1, buffer, n_char);
        return(0);
}