| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | y0 | 3 | 256 |
| centos | y0 | 3 | 224 |
| php | y0 | 3 | 200 |
| plan9 | y0 | 3 | 186 |
| suse | y0 | 3 | 183 |
| debian | y0 | 3 | 181 |
| sunos | y0 | 3m | 171 |
| xfree86 | y0 | 3 | 163 |
| v7 | y0 | 3 | 160 |
| posix | y0 | 3p | 159 |
| opensolaris | y0 | 3m | 145 |
| redhat | y0 | 3 | 135 |
| suse | y0 | 3p | 133 |
| osx | y0 | 3 | 128 |
| centos | y0 | 3p | 127 |
| mojave | y0 | 3 | 122 |
| hpux | y0 | 3m | 121 |
| opendarwin | y0 | 3 | 115 |
| osf1 | y0 | 3 | 104 |
| netbsd | y0 | 3 | 88 |
| freebsd | y0 | 3 | 83 |
| ultrix | y0 | 3m | 81 |