| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | xl | 4 | 333 |
| debian | xl | 4 | 309 |
| minix | xl | 4 | 285 |
| linux | xl | 4 | 278 |
| netbsd | xl | 4 | 272 |
| php | xl | 4 | 266 |
| osx | xl | 4 | 265 |
| plan9 | xl | 4 | 243 |
| centos | xl | 4 | 243 |
| redhat | xl | 4 | 241 |
| opensolaris | xl | 4 | 231 |
| hpux | xl | 4 | 220 |
| xfree86 | xl | 4 | 212 |
| bsd | xl | 4 | 208 |
| suse | xl | 4 | 205 |
| v7 | xl | 4 | 190 |
| osf1 | xl | 4 | 187 |
| posix | xl | 4 | 184 |
| opendarwin | xl | 4 | 158 |