| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | xl | 4 | 272 |
| debian | xl | 4 | 249 |
| linux | xl | 4 | 232 |
| minix | xl | 4 | 225 |
| netbsd | xl | 4 | 221 |
| php | xl | 4 | 204 |
| redhat | xl | 4 | 203 |
| osx | xl | 4 | 196 |
| centos | xl | 4 | 192 |
| opensolaris | xl | 4 | 192 |
| hpux | xl | 4 | 192 |
| plan9 | xl | 4 | 184 |
| bsd | xl | 4 | 174 |
| suse | xl | 4 | 164 |
| xfree86 | xl | 4 | 162 |
| v7 | xl | 4 | 156 |
| osf1 | xl | 4 | 147 |
| posix | xl | 4 | 142 |
| opendarwin | xl | 4 | 128 |