| OS | Man Page | Section | Hits |
|---|---|---|---|
| centos | y0 | 3 | 466 |
| linux | y0 | 3 | 458 |
| suse | y0 | 3 | 451 |
| php | y0 | 3 | 360 |
| plan9 | y0 | 3 | 359 |
| posix | y0 | 3p | 346 |
| v7 | y0 | 3 | 344 |
| xfree86 | y0 | 3 | 333 |
| debian | y0 | 3 | 328 |
| sunos | y0 | 3m | 295 |
| centos | y0 | 3p | 295 |
| mojave | y0 | 3 | 291 |
| redhat | y0 | 3 | 290 |
| suse | y0 | 3p | 284 |
| osx | y0 | 3 | 272 |
| opendarwin | y0 | 3 | 270 |
| opensolaris | y0 | 3m | 267 |
| hpux | y0 | 3m | 254 |
| osf1 | y0 | 3 | 191 |
| freebsd | y0 | 3 | 187 |
| netbsd | y0 | 3 | 185 |
| ultrix | y0 | 3m | 161 |