| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | vr | 4 | 321 |
| freebsd | vr | 4 | 284 |
| redhat | vr | 4 | 272 |
| debian | vr | 4 | 246 |
| php | vr | 4 | 217 |
| opensolaris | vr | 4 | 214 |
| netbsd | vr | 4 | 212 |
| minix | vr | 4 | 208 |
| osx | vr | 4 | 206 |
| xfree86 | vr | 4 | 205 |
| v7 | vr | 4 | 204 |
| plan9 | vr | 4 | 202 |
| centos | vr | 4 | 200 |
| bsd | vr | 4 | 194 |
| suse | vr | 4 | 185 |
| posix | vr | 4 | 182 |
| x11r4 | vr | 4 | 169 |
| osf1 | vr | 4 | 145 |
| hpux | vr | 4 | 140 |