| OS | Man Page | Section | Hits |
|---|---|---|---|
| netbsd | ep | 4 | 434 |
| linux | ep | 4 | 420 |
| bsd | ep | 4 | 414 |
| freebsd | ep | 4 | 387 |
| redhat | ep | 4 | 377 |
| debian | ep | 4 | 347 |
| centos | ep | 4 | 342 |
| xfree86 | ep | 4 | 329 |
| opensolaris | ep | 4 | 328 |
| php | ep | 4 | 326 |
| v7 | ep | 4 | 317 |
| plan9 | ep | 4 | 315 |
| minix | ep | 4 | 312 |
| hpux | ep | 4 | 310 |
| suse | ep | 4 | 308 |
| opendarwin | ep | 4 | 307 |
| osf1 | ep | 4 | 251 |
| posix | ep | 4 | 235 |