| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | sx | 9 | 577 |
| linux | sx | 9 | 575 |
| redhat | sx | 1 | 459 |
| debian | sx | 9 | 441 |
| bsd | sx | 9 | 397 |
| centos | sx | 9 | 328 |
| posix | sx | 9 | 307 |
| plan9 | sx | 9 | 280 |
| mojave | sx | 9 | 267 |
| osx | sx | 9 | 267 |
| php | sx | 9 | 263 |
| hpux | sx | 9 | 262 |
| suse | sx | 9 | 260 |
| minix | sx | 9 | 255 |
| opensolaris | sx | 9 | 251 |
| xfree86 | sx | 9 | 244 |
| ultrix | sx | 9 | 218 |