| OS | Man Page | Section | Hits |
|---|---|---|---|
| netbsd | an | 4 | 577 |
| debian | an | 4 | 490 |
| freebsd | an | 4 | 487 |
| opendarwin | an | 4 | 487 |
| osx | an | 4 | 482 |
| redhat | an | 4 | 481 |
| opensolaris | an | 4 | 481 |
| minix | an | 4 | 478 |
| linux | an | 4 | 472 |
| suse | an | 4 | 467 |
| plan9 | an | 4 | 451 |
| xfree86 | an | 4 | 446 |
| centos | an | 4 | 426 |
| php | an | 4 | 401 |
| posix | an | 4 | 316 |
| debian | an | 6 | 308 |
| hpux | an | 4 | 308 |
| bsd | an | 4 | 285 |
| v7 | an | 4 | 254 |