| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | pcreposix | 3 | 222 |
| x11r4 | pcreposix | 3 | 210 |
| xfree86 | pcreposix | 3 | 207 |
| ultrix | pcreposix | 3 | 203 |
| centos | pcreposix | 3 | 200 |
| v7 | pcreposix | 3 | 189 |
| suse | pcreposix | 3 | 187 |
| opensolaris | pcreposix | 3 | 182 |
| posix | pcreposix | 3 | 179 |
| mojave | pcreposix | 3 | 173 |
| debian | pcreposix | 3 | 172 |
| php | pcreposix | 3 | 163 |
| plan9 | pcreposix | 3 | 140 |
| redhat | pcreposix | 3 | 132 |
| hpux | pcreposix | 3 | 130 |