| OS | Man Page | Section | Hits |
|---|---|---|---|
| netbsd | an | 4 | 494 |
| osx | an | 4 | 406 |
| debian | an | 4 | 405 |
| minix | an | 4 | 402 |
| freebsd | an | 4 | 397 |
| linux | an | 4 | 396 |
| redhat | an | 4 | 385 |
| plan9 | an | 4 | 382 |
| opensolaris | an | 4 | 380 |
| opendarwin | an | 4 | 380 |
| suse | an | 4 | 379 |
| xfree86 | an | 4 | 360 |
| centos | an | 4 | 353 |
| php | an | 4 | 347 |
| posix | an | 4 | 270 |
| debian | an | 6 | 253 |
| hpux | an | 4 | 238 |
| bsd | an | 4 | 226 |
| v7 | an | 4 | 207 |