| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | vr | 4 | 604 |
| linux | vr | 4 | 589 |
| netbsd | vr | 4 | 546 |
| redhat | vr | 4 | 541 |
| debian | vr | 4 | 535 |
| php | vr | 4 | 484 |
| v7 | vr | 4 | 482 |
| minix | vr | 4 | 473 |
| plan9 | vr | 4 | 472 |
| opensolaris | vr | 4 | 461 |
| xfree86 | vr | 4 | 452 |
| osx | vr | 4 | 440 |
| bsd | vr | 4 | 440 |
| centos | vr | 4 | 438 |
| suse | vr | 4 | 417 |
| x11r4 | vr | 4 | 369 |
| posix | vr | 4 | 356 |
| hpux | vr | 4 | 326 |
| osf1 | vr | 4 | 326 |