| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | vcsa | 4 | 509 |
| centos | vcsa | 4 | 485 |
| redhat | vcsa | 4 | 465 |
| v7 | vcsa | 4 | 452 |
| bsd | vcsa | 4 | 439 |
| plan9 | vcsa | 4 | 382 |
| debian | vcsa | 4 | 379 |
| xfree86 | vcsa | 4 | 363 |
| opendarwin | vcsa | 4 | 353 |
| suse | vcsa | 4 | 350 |
| freebsd | vcsa | 4 | 321 |
| opensolaris | vcsa | 4 | 317 |
| php | vcsa | 4 | 312 |
| posix | vcsa | 4 | 288 |
| mojave | vcsa | 4 | 264 |
| minix | vcsa | 4 | 261 |
| hpux | vcsa | 4 | 245 |
| osf1 | vcsa | 4 | 242 |
| x11r4 | vcsa | 4 | 239 |
| sunos | vcsa | 4 | 232 |