| OS | Man Page | Section | Hits |
|---|---|---|---|
| bsd | sigblock | 2 | 579 |
| sunos | sigblock | 3ucb | 557 |
| linux | sigblock | 3 | 522 |
| netbsd | sigblock | 3 | 515 |
| opensolaris | sigblock | 3ucb | 514 |
| redhat | sigblock | 2 | 463 |
| suse | sigblock | 3 | 452 |
| debian | sigblock | 2 | 445 |
| opendarwin | sigblock | 3 | 443 |
| osf1 | sigblock | 2 | 426 |
| centos | sigblock | 3 | 419 |
| mojave | sigblock | 2 | 411 |
| hpux | sigblock | 3 | 388 |
| freebsd | sigblock | 2 | 378 |
| osx | sigblock | 2 | 357 |
| v7 | sigblock | 3 | 320 |
| ultrix | sigblock | 2 | 317 |
| minix | sigblock | 3 | 316 |
| x11r4 | sigblock | 3 | 304 |
| debian | sigblock | 3 | 299 |
| xfree86 | sigblock | 3 | 292 |
| plan9 | sigblock | 3 | 276 |
| php | sigblock | 3 | 274 |