| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | pcresyntax | 3 | 676 |
| debian | pcresyntax | 3 | 421 |
| centos | pcresyntax | 3 | 382 |
| x11r4 | pcresyntax | 3 | 368 |
| ultrix | pcresyntax | 3 | 360 |
| php | pcresyntax | 3 | 359 |
| plan9 | pcresyntax | 3 | 321 |
| xfree86 | pcresyntax | 3 | 318 |
| posix | pcresyntax | 3 | 316 |
| v7 | pcresyntax | 3 | 315 |
| osx | pcresyntax | 3 | 310 |
| mojave | pcresyntax | 3 | 285 |
| suse | pcresyntax | 3 | 275 |
| hpux | pcresyntax | 3 | 269 |