| OS | Man Page | Section | Hits |
|---|---|---|---|
| opensolaris | attropen | 3c | 605 |
| sunos | attropen | 3c | 495 |
| posix | attropen | 3c | 451 |
| xfree86 | attropen | 3c | 448 |
| v7 | attropen | 3c | 403 |
| osx | attropen | 3c | 401 |
| minix | attropen | 3c | 395 |
| opendarwin | attropen | 3c | 393 |
| debian | attropen | 3c | 389 |
| centos | attropen | 3c | 386 |
| suse | attropen | 3c | 381 |
| php | attropen | 3c | 378 |
| linux | attropen | 3c | 368 |
| plan9 | attropen | 3c | 358 |
| x11r4 | attropen | 3c | 358 |
| mojave | attropen | 3c | 357 |
| bsd | attropen | 3c | 322 |
| osf1 | attropen | 3c | 320 |
| ultrix | attropen | 3c | 306 |