| OS | Man Page | Section | Hits |
|---|---|---|---|
| opensolaris | attropen | 3c | 479 |
| sunos | attropen | 3c | 399 |
| xfree86 | attropen | 3c | 353 |
| posix | attropen | 3c | 349 |
| opendarwin | attropen | 3c | 340 |
| v7 | attropen | 3c | 331 |
| osx | attropen | 3c | 327 |
| debian | attropen | 3c | 314 |
| minix | attropen | 3c | 311 |
| linux | attropen | 3c | 305 |
| suse | attropen | 3c | 304 |
| centos | attropen | 3c | 303 |
| mojave | attropen | 3c | 292 |
| plan9 | attropen | 3c | 290 |
| php | attropen | 3c | 289 |
| x11r4 | attropen | 3c | 281 |
| osf1 | attropen | 3c | 270 |
| bsd | attropen | 3c | 267 |
| ultrix | attropen | 3c | 240 |