| OS | Man Page | Section | Hits |
|---|---|---|---|
| netbsd | an | 4 | 275 |
| linux | an | 4 | 232 |
| freebsd | an | 4 | 224 |
| redhat | an | 4 | 222 |
| osx | an | 4 | 211 |
| minix | an | 4 | 203 |
| debian | an | 4 | 202 |
| plan9 | an | 4 | 201 |
| php | an | 4 | 197 |
| opensolaris | an | 4 | 194 |
| opendarwin | an | 4 | 184 |
| xfree86 | an | 4 | 180 |
| suse | an | 4 | 179 |
| centos | an | 4 | 175 |
| posix | an | 4 | 143 |
| hpux | an | 4 | 119 |
| debian | an | 6 | 112 |
| bsd | an | 4 | 112 |
| v7 | an | 4 | 101 |