| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | niserror | 1 | 71 |
| sunos | niserror | 1 | 61 |
| suse | niserror | 1 | 50 |
| opensolaris | niserror | 1 | 47 |
| opendarwin | niserror | 1 | 46 |
| bsd | niserror | 1 | 41 |
| v7 | niserror | 1 | 41 |
| mojave | niserror | 1 | 40 |
| x11r4 | niserror | 1 | 39 |
| redhat | niserror | 1 | 39 |
| centos | niserror | 1 | 36 |
| osf1 | niserror | 1 | 36 |
| debian | niserror | 1 | 34 |
| xfree86 | niserror | 1 | 31 |
| minix | niserror | 1 | 29 |
| hpux | niserror | 1 | 29 |
| osx | niserror | 1 | 25 |
| plan9 | niserror | 1 | 22 |