| OS | Man Page | Section | Hits |
|---|---|---|---|
| bsd | ep | 4 | 744 |
| netbsd | ep | 4 | 697 |
| linux | ep | 4 | 636 |
| freebsd | ep | 4 | 626 |
| redhat | ep | 4 | 623 |
| xfree86 | ep | 4 | 555 |
| hpux | ep | 4 | 532 |
| debian | ep | 4 | 531 |
| v7 | ep | 4 | 530 |
| opensolaris | ep | 4 | 518 |
| minix | ep | 4 | 515 |
| plan9 | ep | 4 | 510 |
| centos | ep | 4 | 508 |
| opendarwin | ep | 4 | 504 |
| php | ep | 4 | 503 |
| suse | ep | 4 | 497 |
| osf1 | ep | 4 | 387 |
| posix | ep | 4 | 369 |