| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | vr | 4 | 179 |
| freebsd | vr | 4 | 162 |
| debian | vr | 4 | 125 |
| redhat | vr | 4 | 125 |
| v7 | vr | 4 | 117 |
| netbsd | vr | 4 | 111 |
| minix | vr | 4 | 111 |
| php | vr | 4 | 110 |
| xfree86 | vr | 4 | 104 |
| bsd | vr | 4 | 102 |
| plan9 | vr | 4 | 98 |
| posix | vr | 4 | 97 |
| centos | vr | 4 | 97 |
| osx | vr | 4 | 94 |
| opensolaris | vr | 4 | 92 |
| suse | vr | 4 | 80 |
| x11r4 | vr | 4 | 79 |
| osf1 | vr | 4 | 76 |
| hpux | vr | 4 | 72 |