| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | dup3 | 3 | 246 |
| linux | dup3 | 2 | 196 |
| netbsd | dup3 | 2 | 141 |
| suse | dup3 | 2 | 139 |
| centos | dup3 | 2 | 138 |
| hpux | dup3 | 2 | 136 |
| posix | dup3 | 2 | 136 |
| xfree86 | dup3 | 2 | 134 |
| plan9 | dup3 | 2 | 133 |
| debian | dup3 | 2 | 120 |
| php | dup3 | 2 | 117 |
| mojave | dup3 | 2 | 114 |
| minix | dup3 | 2 | 109 |
| x11r4 | dup3 | 2 | 103 |
| opendarwin | dup3 | 2 | 93 |
| sunos | dup3 | 2 | 89 |
| opensolaris | dup3 | 2 | 80 |
| osf1 | dup3 | 2 | 68 |