| OS | Man Page | Section | Hits |
|---|---|---|---|
| sunos | niserror | 1 | 538 |
| bsd | niserror | 1 | 522 |
| opendarwin | niserror | 1 | 489 |
| suse | niserror | 1 | 481 |
| minix | niserror | 1 | 429 |
| linux | niserror | 1 | 428 |
| centos | niserror | 1 | 412 |
| mojave | niserror | 1 | 411 |
| opensolaris | niserror | 1 | 404 |
| v7 | niserror | 1 | 382 |
| osf1 | niserror | 1 | 373 |
| redhat | niserror | 1 | 372 |
| x11r4 | niserror | 1 | 368 |
| xfree86 | niserror | 1 | 367 |
| debian | niserror | 1 | 360 |
| plan9 | niserror | 1 | 337 |
| osx | niserror | 1 | 287 |
| hpux | niserror | 1 | 251 |