| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | pcreapi | 3 | 359 |
| x11r4 | pcreapi | 3 | 324 |
| opensolaris | pcreapi | 3 | 320 |
| debian | pcreapi | 3 | 285 |
| posix | pcreapi | 3 | 260 |
| suse | pcreapi | 3 | 253 |
| centos | pcreapi | 3 | 246 |
| ultrix | pcreapi | 3 | 245 |
| mojave | pcreapi | 3 | 243 |
| osx | pcreapi | 3 | 242 |
| xfree86 | pcreapi | 3 | 233 |
| php | pcreapi | 3 | 228 |
| v7 | pcreapi | 3 | 209 |
| hpux | pcreapi | 3 | 207 |
| plan9 | pcreapi | 3 | 201 |