| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | pcreposix | 3 | 308 |
| x11r4 | pcreposix | 3 | 298 |
| opensolaris | pcreposix | 3 | 277 |
| ultrix | pcreposix | 3 | 272 |
| suse | pcreposix | 3 | 269 |
| xfree86 | pcreposix | 3 | 265 |
| centos | pcreposix | 3 | 255 |
| v7 | pcreposix | 3 | 255 |
| mojave | pcreposix | 3 | 248 |
| debian | pcreposix | 3 | 235 |
| posix | pcreposix | 3 | 232 |
| php | pcreposix | 3 | 229 |
| plan9 | pcreposix | 3 | 200 |
| hpux | pcreposix | 3 | 194 |
| redhat | pcreposix | 3 | 189 |