int utils_recursive_rmdir(const char *path);
int utils_truncate_stream_file(int fd, off_t length);
int utils_show_man_page(int section, const char *page_name);
int utils_recursive_rmdir(const char *path);
int utils_truncate_stream_file(int fd, off_t length);
int utils_show_man_page(int section, const char *page_name);