| OS | Man Page | Section | Hits |
|---|---|---|---|
| bsd | sigblock | 2 | 448 |
| linux | sigblock | 3 | 414 |
| sunos | sigblock | 3ucb | 411 |
| netbsd | sigblock | 3 | 401 |
| opensolaris | sigblock | 3ucb | 383 |
| redhat | sigblock | 2 | 378 |
| suse | sigblock | 3 | 337 |
| debian | sigblock | 2 | 336 |
| opendarwin | sigblock | 3 | 334 |
| centos | sigblock | 3 | 330 |
| mojave | sigblock | 2 | 326 |
| osf1 | sigblock | 2 | 318 |
| hpux | sigblock | 3 | 299 |
| freebsd | sigblock | 2 | 293 |
| osx | sigblock | 2 | 273 |
| ultrix | sigblock | 2 | 251 |
| minix | sigblock | 3 | 244 |
| x11r4 | sigblock | 3 | 239 |
| debian | sigblock | 3 | 233 |
| v7 | sigblock | 3 | 228 |
| xfree86 | sigblock | 3 | 221 |
| php | sigblock | 3 | 220 |
| plan9 | sigblock | 3 | 209 |