| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | sf | 4 | 192 |
| freebsd | sf | 4 | 146 |
| redhat | sf | 4 | 146 |
| opensolaris | sf | 7d | 142 |
| debian | sf | 4 | 133 |
| netbsd | sf | 4 | 133 |
| plan9 | sf | 4 | 132 |
| php | sf | 4 | 130 |
| centos | sf | 4 | 117 |
| xfree86 | sf | 4 | 117 |
| osx | sf | 4 | 116 |
| v7 | sf | 4 | 113 |
| suse | sf | 4 | 110 |
| minix | sf | 4 | 105 |
| x11r4 | sf | 4 | 98 |
| mojave | sf | 4 | 95 |
| sunos | sf | 7d | 94 |
| bsd | sf | 4 | 92 |
| posix | sf | 4 | 91 |
| osf1 | sf | 4 | 71 |
| hpux | sf | 4 | 61 |