| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | ep | 4 | 252 |
| netbsd | ep | 4 | 244 |
| freebsd | ep | 4 | 216 |
| redhat | ep | 4 | 197 |
| bsd | ep | 4 | 197 |
| debian | ep | 4 | 192 |
| centos | ep | 4 | 174 |
| php | ep | 4 | 164 |
| opensolaris | ep | 4 | 162 |
| plan9 | ep | 4 | 158 |
| v7 | ep | 4 | 154 |
| minix | ep | 4 | 149 |
| opendarwin | ep | 4 | 148 |
| xfree86 | ep | 4 | 147 |
| suse | ep | 4 | 143 |
| hpux | ep | 4 | 132 |
| posix | ep | 4 | 111 |
| osf1 | ep | 4 | 108 |