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/** System Programming (3) : read **/

#include <fcntl.h>

#include <unistd.h>

#include <stdio.h>

#include <stdlib.h>

int main(void)

{

int fd, n;

char buf[10];

fd = open("erica.txt", O_RDONLY);

if( fd == -1 )

{

perror("open : O_RDONLY");

exit(1);

}

n = read (fd, buf, 8);

printf("read(2) : nbytes = %d, buf = %s \n", n, buf);

close(fd);

return 0;

}