| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | vr | 4 | 483 |
| linux | vr | 4 | 461 |
| redhat | vr | 4 | 411 |
| debian | vr | 4 | 410 |
| netbsd | vr | 4 | 379 |
| php | vr | 4 | 376 |
| minix | vr | 4 | 356 |
| plan9 | vr | 4 | 352 |
| v7 | vr | 4 | 351 |
| opensolaris | vr | 4 | 336 |
| osx | vr | 4 | 334 |
| centos | vr | 4 | 332 |
| xfree86 | vr | 4 | 331 |
| bsd | vr | 4 | 312 |
| suse | vr | 4 | 304 |
| x11r4 | vr | 4 | 276 |
| posix | vr | 4 | 270 |
| osf1 | vr | 4 | 247 |
| hpux | vr | 4 | 240 |