| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | dup3 | 3 | 752 |
| linux | dup3 | 2 | 512 |
| posix | dup3 | 2 | 502 |
| suse | dup3 | 2 | 463 |
| centos | dup3 | 2 | 462 |
| plan9 | dup3 | 2 | 411 |
| netbsd | dup3 | 2 | 397 |
| hpux | dup3 | 2 | 395 |
| debian | dup3 | 2 | 382 |
| mojave | dup3 | 2 | 379 |
| xfree86 | dup3 | 2 | 374 |
| minix | dup3 | 2 | 343 |
| x11r4 | dup3 | 2 | 340 |
| php | dup3 | 2 | 330 |
| sunos | dup3 | 2 | 278 |
| opensolaris | dup3 | 2 | 268 |
| osf1 | dup3 | 2 | 234 |
| opendarwin | dup3 | 2 | 222 |