| OS | Man Page | Section | Hits |
|---|---|---|---|
| netbsd | zs | 4 | 439 |
| sunos | zs | 7d | 434 |
| opensolaris | zs | 7d | 411 |
| linux | zs | 7d | 404 |
| v7 | zs | 7d | 402 |
| plan9 | zs | 7d | 380 |
| bsd | zs | 7d | 373 |
| mojave | zs | 7d | 345 |
| osx | zs | 7d | 341 |
| freebsd | zs | 7d | 331 |
| xfree86 | zs | 7d | 326 |
| suse | zs | 7d | 322 |
| posix | zs | 7d | 302 |
| minix | zs | 7d | 292 |
| opendarwin | zs | 7d | 290 |
| php | zs | 7d | 276 |
| ultrix | zs | 7d | 276 |
| osf1 | zs | 7d | 266 |
| hpux | zs | 7d | 233 |
| centos | zs | 7d | 200 |