| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | ff | 1m | 639 |
| debian | ff | 1m | 385 |
| osx | ff | 1m | 382 |
| mojave | ff | 1m | 356 |
| php | ff | 1m | 354 |
| redhat | ff | 1m | 349 |
| minix | ff | 1m | 315 |
| suse | ff | 1m | 300 |
| sunos | ff | 1m | 299 |
| hpux | ff | 1m | 284 |
| freebsd | ff | 1m | 255 |
| opensolaris | ff | 1m | 250 |
| x11r4 | ff | 1m | 243 |
| xfree86 | ff | 1m | 241 |
| centos | ff | 1m | 232 |
| opendarwin | ff | 1m | 231 |
| v7 | ff | 1m | 209 |
| posix | ff | 1m | 205 |
| osf1 | ff | 1m | 184 |
| plan9 | ff | 1m | 168 |