| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | y0 | 3 | 310 |
| centos | y0 | 3 | 271 |
| php | y0 | 3 | 234 |
| suse | y0 | 3 | 233 |
| plan9 | y0 | 3 | 216 |
| debian | y0 | 3 | 212 |
| xfree86 | y0 | 3 | 201 |
| posix | y0 | 3p | 199 |
| sunos | y0 | 3m | 196 |
| v7 | y0 | 3 | 191 |
| opensolaris | y0 | 3m | 170 |
| suse | y0 | 3p | 168 |
| redhat | y0 | 3 | 164 |
| hpux | y0 | 3m | 160 |
| centos | y0 | 3p | 157 |
| mojave | y0 | 3 | 156 |
| osx | y0 | 3 | 155 |
| opendarwin | y0 | 3 | 142 |
| osf1 | y0 | 3 | 120 |
| netbsd | y0 | 3 | 106 |
| freebsd | y0 | 3 | 105 |
| ultrix | y0 | 3m | 99 |