| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | sx | 9 | 473 |
| freebsd | sx | 9 | 456 |
| bsd | sx | 9 | 351 |
| debian | sx | 9 | 318 |
| redhat | sx | 1 | 307 |
| centos | sx | 9 | 241 |
| posix | sx | 9 | 225 |
| plan9 | sx | 9 | 224 |
| osx | sx | 9 | 213 |
| php | sx | 9 | 209 |
| minix | sx | 9 | 208 |
| hpux | sx | 9 | 207 |
| suse | sx | 9 | 200 |
| opensolaris | sx | 9 | 200 |
| xfree86 | sx | 9 | 192 |
| mojave | sx | 9 | 189 |
| ultrix | sx | 9 | 167 |