| OS | Man Page | Section | Hits |
|---|---|---|---|
| posix | syscalls | 2 | 2,107 |
| v7 | syscalls | 2 | 1,073 |
| linux | syscalls | 2 | 830 |
| plan9 | syscalls | 2 | 716 |
| centos | syscalls | 2 | 677 |
| freebsd | syscalls | 2 | 613 |
| minix | syscalls | 2 | 613 |
| suse | syscalls | 2 | 604 |
| bsd | syscalls | 2 | 599 |
| debian | syscalls | 2 | 543 |
| xfree86 | syscalls | 2 | 506 |
| opendarwin | syscalls | 2 | 499 |
| osf1 | syscalls | 2 | 498 |
| sunos | syscalls | 2 | 488 |
| x11r4 | syscalls | 2 | 487 |
| osx | syscalls | 2 | 479 |
| debian | perl::critic::policy::inputoutput::requirecheckedsyscalls | 3pm | 465 |
| redhat | syscalls | 2 | 457 |
| php | syscalls | 2 | 446 |
| ultrix | syscalls | 2 | 396 |
| mojave | syscalls | 2 | 395 |
| opensolaris | syscalls | 2 | 393 |
| centos | perl::critic::policy::inputoutput::requirecheckedsyscalls | 3 | 389 |
| hpux | syscalls | 2 | 376 |