| OS | Man Page | Section | Hits |
|---|---|---|---|
| v7 | y1 | 3 | 69 |
| linux | y1 | 3 | 52 |
| php | y1 | 3 | 47 |
| freebsd | y1 | 3 | 46 |
| centos | y1 | 3 | 45 |
| posix | y1 | 3 | 43 |
| opensolaris | y1 | 3m | 40 |
| debian | y1 | 3 | 39 |
| sunos | y1 | 3m | 38 |
| opendarwin | y1 | 3 | 37 |
| suse | y1 | 3 | 37 |
| redhat | y1 | 3 | 36 |
| netbsd | y1 | 3 | 35 |
| xfree86 | y1 | 3 | 31 |
| osf1 | y1 | 3 | 27 |
| centos | y1 | 3p | 27 |
| mojave | y1 | 3 | 26 |
| osx | y1 | 3 | 23 |
| suse | y1 | 3p | 22 |
| ultrix | y1 | 3m | 21 |
| plan9 | y1 | 3 | 20 |
| hpux | y1 | 3m | 16 |