| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | pcreposix | 3 | 169 |
| xfree86 | pcreposix | 3 | 144 |
| ultrix | pcreposix | 3 | 131 |
| opensolaris | pcreposix | 3 | 130 |
| v7 | pcreposix | 3 | 130 |
| centos | pcreposix | 3 | 123 |
| x11r4 | pcreposix | 3 | 120 |
| debian | pcreposix | 3 | 111 |
| suse | pcreposix | 3 | 111 |
| posix | pcreposix | 3 | 111 |
| mojave | pcreposix | 3 | 107 |
| php | pcreposix | 3 | 102 |
| redhat | pcreposix | 3 | 92 |
| plan9 | pcreposix | 3 | 89 |
| hpux | pcreposix | 3 | 80 |