| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | sf | 4 | 312 |
| redhat | sf | 4 | 289 |
| opensolaris | sf | 7d | 239 |
| php | sf | 4 | 235 |
| debian | sf | 4 | 222 |
| freebsd | sf | 4 | 216 |
| netbsd | sf | 4 | 216 |
| suse | sf | 4 | 215 |
| centos | sf | 4 | 215 |
| plan9 | sf | 4 | 211 |
| minix | sf | 4 | 207 |
| osx | sf | 4 | 203 |
| v7 | sf | 4 | 188 |
| xfree86 | sf | 4 | 187 |
| mojave | sf | 4 | 182 |
| x11r4 | sf | 4 | 167 |
| bsd | sf | 4 | 163 |
| sunos | sf | 7d | 149 |
| posix | sf | 4 | 146 |
| osf1 | sf | 4 | 124 |
| hpux | sf | 4 | 116 |