| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | sx | 9 | 847 |
| linux | sx | 9 | 820 |
| redhat | sx | 1 | 812 |
| debian | sx | 9 | 715 |
| bsd | sx | 9 | 588 |
| centos | sx | 9 | 583 |
| posix | sx | 9 | 490 |
| plan9 | sx | 9 | 452 |
| minix | sx | 9 | 448 |
| suse | sx | 9 | 441 |
| hpux | sx | 9 | 422 |
| osx | sx | 9 | 418 |
| mojave | sx | 9 | 410 |
| xfree86 | sx | 9 | 405 |
| opensolaris | sx | 9 | 404 |
| php | sx | 9 | 393 |
| ultrix | sx | 9 | 362 |