| OS | Man Page | Section | Hits |
|---|---|---|---|
| netbsd | an | 4 | 696 |
| debian | an | 4 | 617 |
| opendarwin | an | 4 | 606 |
| freebsd | an | 4 | 597 |
| osx | an | 4 | 593 |
| opensolaris | an | 4 | 590 |
| redhat | an | 4 | 586 |
| linux | an | 4 | 571 |
| minix | an | 4 | 568 |
| suse | an | 4 | 564 |
| plan9 | an | 4 | 543 |
| xfree86 | an | 4 | 533 |
| php | an | 4 | 499 |
| centos | an | 4 | 496 |
| debian | an | 6 | 388 |
| posix | an | 4 | 386 |
| hpux | an | 4 | 363 |
| bsd | an | 4 | 349 |
| v7 | an | 4 | 326 |