| OS | Man Page | Section | Hits |
|---|---|---|---|
| opensolaris | hdio | 7i | 552 |
| linux | hdio | 7i | 548 |
| redhat | hdio | 7i | 495 |
| centos | hdio | 7i | 491 |
| sunos | hdio | 7i | 489 |
| debian | hdio | 7i | 479 |
| mojave | hdio | 7i | 472 |
| xfree86 | hdio | 7i | 468 |
| php | hdio | 7i | 467 |
| minix | hdio | 7i | 460 |
| hpux | hdio | 7i | 455 |
| suse | hdio | 7i | 435 |
| v7 | hdio | 7i | 432 |
| osx | hdio | 7i | 425 |
| opendarwin | hdio | 7i | 418 |
| bsd | hdio | 7i | 345 |
| freebsd | hdio | 7i | 339 |
| plan9 | hdio | 7i | 335 |
| posix | hdio | 7i | 316 |