| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | vcsa | 4 | 405 |
| centos | vcsa | 4 | 393 |
| redhat | vcsa | 4 | 388 |
| bsd | vcsa | 4 | 362 |
| v7 | vcsa | 4 | 358 |
| debian | vcsa | 4 | 312 |
| plan9 | vcsa | 4 | 307 |
| opendarwin | vcsa | 4 | 300 |
| xfree86 | vcsa | 4 | 292 |
| suse | vcsa | 4 | 281 |
| opensolaris | vcsa | 4 | 267 |
| freebsd | vcsa | 4 | 254 |
| php | vcsa | 4 | 252 |
| posix | vcsa | 4 | 243 |
| mojave | vcsa | 4 | 220 |
| minix | vcsa | 4 | 207 |
| hpux | vcsa | 4 | 201 |
| osf1 | vcsa | 4 | 200 |
| x11r4 | vcsa | 4 | 199 |
| sunos | vcsa | 4 | 187 |