766:/lib/library.c (/lib/library.c)
(public int) library_move_book(string book_file, string new_dir)
/*
 * Function name: library_move_book
 * Description:   Move a book file to another directory.
 * Arguments:     string book_file - the filename of the book file
 *                string new_dir   - the destination directory
 * Returns:       1/0 - move successful/unsuccessful
 */
