| OS | Man Page | Section | Hits |
|---|---|---|---|
| sunos | prnio | 7i | 324 |
| freebsd | prnio | 7i | 312 |
| xfree86 | prnio | 7i | 302 |
| opensolaris | prnio | 7i | 294 |
| mojave | prnio | 7i | 288 |
| v7 | prnio | 7i | 288 |
| posix | prnio | 7i | 278 |
| minix | prnio | 7i | 273 |
| plan9 | prnio | 7i | 273 |
| osf1 | prnio | 7i | 266 |
| suse | prnio | 7i | 255 |
| redhat | prnio | 7i | 253 |
| hpux | prnio | 7i | 249 |
| php | prnio | 7i | 248 |
| centos | prnio | 7i | 246 |
| debian | prnio | 7i | 227 |