| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | pcresyntax | 3 | 616 |
| debian | pcresyntax | 3 | 385 |
| centos | pcresyntax | 3 | 348 |
| x11r4 | pcresyntax | 3 | 333 |
| php | pcresyntax | 3 | 328 |
| ultrix | pcresyntax | 3 | 326 |
| plan9 | pcresyntax | 3 | 296 |
| xfree86 | pcresyntax | 3 | 289 |
| posix | pcresyntax | 3 | 289 |
| v7 | pcresyntax | 3 | 284 |
| osx | pcresyntax | 3 | 279 |
| mojave | pcresyntax | 3 | 260 |
| suse | pcresyntax | 3 | 251 |
| hpux | pcresyntax | 3 | 239 |