| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | xl | 4 | 578 |
| debian | xl | 4 | 562 |
| netbsd | xl | 4 | 534 |
| minix | xl | 4 | 496 |
| linux | xl | 4 | 484 |
| centos | xl | 4 | 477 |
| osx | xl | 4 | 477 |
| plan9 | xl | 4 | 476 |
| php | xl | 4 | 456 |
| redhat | xl | 4 | 447 |
| opensolaris | xl | 4 | 427 |
| bsd | xl | 4 | 417 |
| suse | xl | 4 | 411 |
| hpux | xl | 4 | 399 |
| v7 | xl | 4 | 386 |
| xfree86 | xl | 4 | 382 |
| osf1 | xl | 4 | 358 |
| posix | xl | 4 | 352 |
| opendarwin | xl | 4 | 340 |