| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | pcreposix | 3 | 191 |
| xfree86 | pcreposix | 3 | 170 |
| ultrix | pcreposix | 3 | 160 |
| opensolaris | pcreposix | 3 | 158 |
| v7 | pcreposix | 3 | 158 |
| x11r4 | pcreposix | 3 | 150 |
| centos | pcreposix | 3 | 145 |
| suse | pcreposix | 3 | 143 |
| posix | pcreposix | 3 | 140 |
| debian | pcreposix | 3 | 136 |
| mojave | pcreposix | 3 | 135 |
| php | pcreposix | 3 | 124 |
| redhat | pcreposix | 3 | 112 |
| plan9 | pcreposix | 3 | 110 |
| hpux | pcreposix | 3 | 100 |