| OS | Man Page | Section | Hits |
|---|---|---|---|
| bsd | sigblock | 2 | 513 |
| sunos | sigblock | 3ucb | 497 |
| linux | sigblock | 3 | 483 |
| netbsd | sigblock | 3 | 462 |
| opensolaris | sigblock | 3ucb | 452 |
| redhat | sigblock | 2 | 423 |
| suse | sigblock | 3 | 396 |
| opendarwin | sigblock | 3 | 393 |
| debian | sigblock | 2 | 389 |
| centos | sigblock | 3 | 379 |
| mojave | sigblock | 2 | 374 |
| osf1 | sigblock | 2 | 369 |
| hpux | sigblock | 3 | 351 |
| freebsd | sigblock | 2 | 343 |
| osx | sigblock | 2 | 318 |
| v7 | sigblock | 3 | 295 |
| ultrix | sigblock | 2 | 283 |
| minix | sigblock | 3 | 282 |
| x11r4 | sigblock | 3 | 274 |
| debian | sigblock | 3 | 266 |
| xfree86 | sigblock | 3 | 262 |
| php | sigblock | 3 | 245 |
| plan9 | sigblock | 3 | 242 |