| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | free_rtn | 9s | 164 |
| linux | free_rtn | 9s | 147 |
| centos | free_rtn | 9s | 142 |
| xfree86 | free_rtn | 9s | 140 |
| posix | free_rtn | 9s | 126 |
| osx | free_rtn | 9s | 124 |
| sunos | free_rtn | 9s | 121 |
| php | free_rtn | 9s | 113 |
| opensolaris | free_rtn | 9s | 106 |
| mojave | free_rtn | 9s | 100 |
| hpux | free_rtn | 9s | 98 |
| debian | free_rtn | 9s | 89 |