| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | vr | 4 | 658 |
| linux | vr | 4 | 640 |
| netbsd | vr | 4 | 621 |
| redhat | vr | 4 | 596 |
| debian | vr | 4 | 581 |
| php | vr | 4 | 531 |
| plan9 | vr | 4 | 524 |
| v7 | vr | 4 | 523 |
| minix | vr | 4 | 520 |
| opensolaris | vr | 4 | 508 |
| osx | vr | 4 | 498 |
| xfree86 | vr | 4 | 495 |
| centos | vr | 4 | 485 |
| bsd | vr | 4 | 485 |
| suse | vr | 4 | 463 |
| x11r4 | vr | 4 | 401 |
| posix | vr | 4 | 380 |
| hpux | vr | 4 | 355 |
| osf1 | vr | 4 | 354 |