| OS | Man Page | Section | Hits |
|---|---|---|---|
| netbsd | an | 4 | 176 |
| linux | an | 4 | 140 |
| freebsd | an | 4 | 138 |
| redhat | an | 4 | 127 |
| minix | an | 4 | 122 |
| debian | an | 4 | 117 |
| opensolaris | an | 4 | 109 |
| suse | an | 4 | 108 |
| osx | an | 4 | 104 |
| php | an | 4 | 103 |
| xfree86 | an | 4 | 100 |
| plan9 | an | 4 | 99 |
| centos | an | 4 | 98 |
| posix | an | 4 | 96 |
| opendarwin | an | 4 | 92 |
| hpux | an | 4 | 79 |
| bsd | an | 4 | 67 |
| v7 | an | 4 | 59 |
| debian | an | 6 | 53 |