| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | sf | 4 | 663 |
| redhat | sf | 4 | 656 |
| opensolaris | sf | 7d | 579 |
| mojave | sf | 4 | 555 |
| minix | sf | 4 | 546 |
| suse | sf | 4 | 542 |
| php | sf | 4 | 527 |
| centos | sf | 4 | 511 |
| debian | sf | 4 | 508 |
| freebsd | sf | 4 | 501 |
| netbsd | sf | 4 | 499 |
| osx | sf | 4 | 495 |
| plan9 | sf | 4 | 471 |
| v7 | sf | 4 | 466 |
| bsd | sf | 4 | 450 |
| x11r4 | sf | 4 | 445 |
| xfree86 | sf | 4 | 442 |
| sunos | sf | 7d | 401 |
| posix | sf | 4 | 381 |
| osf1 | sf | 4 | 276 |
| hpux | sf | 4 | 261 |