| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | witness | 4 | 579 |
| debian | witness | 4 | 494 |
| opensolaris | witness | 4 | 459 |
| minix | witness | 4 | 457 |
| redhat | witness | 4 | 451 |
| php | witness | 4 | 437 |
| linux | witness | 4 | 423 |
| posix | witness | 4 | 415 |
| xfree86 | witness | 4 | 411 |
| suse | witness | 4 | 408 |
| osx | witness | 4 | 408 |
| mojave | witness | 4 | 407 |
| centos | witness | 4 | 405 |
| bsd | witness | 4 | 390 |
| v7 | witness | 4 | 380 |
| ultrix | witness | 4 | 353 |
| plan9 | witness | 4 | 290 |