| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | sf | 4 | 718 |
| redhat | sf | 4 | 689 |
| opensolaris | sf | 7d | 609 |
| mojave | sf | 4 | 597 |
| minix | sf | 4 | 587 |
| suse | sf | 4 | 575 |
| php | sf | 4 | 575 |
| netbsd | sf | 4 | 558 |
| centos | sf | 4 | 553 |
| debian | sf | 4 | 544 |
| freebsd | sf | 4 | 535 |
| osx | sf | 4 | 529 |
| v7 | sf | 4 | 506 |
| plan9 | sf | 4 | 503 |
| bsd | sf | 4 | 485 |
| x11r4 | sf | 4 | 484 |
| xfree86 | sf | 4 | 479 |
| sunos | sf | 7d | 438 |
| posix | sf | 4 | 410 |
| osf1 | sf | 4 | 307 |
| hpux | sf | 4 | 287 |