| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | pcrecallout | 3 | 457 |
| x11r4 | pcrecallout | 3 | 340 |
| opensolaris | pcrecallout | 3 | 320 |
| debian | pcrecallout | 3 | 308 |
| ultrix | pcrecallout | 3 | 298 |
| osx | pcrecallout | 3 | 290 |
| posix | pcrecallout | 3 | 285 |
| xfree86 | pcrecallout | 3 | 273 |
| centos | pcrecallout | 3 | 272 |
| mojave | pcrecallout | 3 | 269 |
| plan9 | pcrecallout | 3 | 258 |
| suse | pcrecallout | 3 | 250 |
| php | pcrecallout | 3 | 248 |
| hpux | pcrecallout | 3 | 242 |
| v7 | pcrecallout | 3 | 234 |