| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | ff | 1m | 1,142 |
| debian | ff | 1m | 681 |
| osx | ff | 1m | 647 |
| mojave | ff | 1m | 644 |
| redhat | ff | 1m | 607 |
| minix | ff | 1m | 586 |
| php | ff | 1m | 577 |
| suse | ff | 1m | 571 |
| hpux | ff | 1m | 532 |
| freebsd | ff | 1m | 525 |
| sunos | ff | 1m | 497 |
| xfree86 | ff | 1m | 487 |
| opendarwin | ff | 1m | 476 |
| x11r4 | ff | 1m | 452 |
| v7 | ff | 1m | 450 |
| centos | ff | 1m | 444 |
| posix | ff | 1m | 430 |
| opensolaris | ff | 1m | 428 |
| osf1 | ff | 1m | 408 |
| plan9 | ff | 1m | 351 |