| OS | Man Page | Section | Hits |
|---|---|---|---|
| v7 | getpid | 2 | 1,347 |
| minix | getpid | 2 | 1,128 |
| linux | getpid | 2 | 741 |
| freebsd | getpid | 2 | 732 |
| opensolaris | getpid | 2 | 687 |
| centos | getpid | 2 | 655 |
| posix | getpid | 3p | 630 |
| suse | getpid | 2 | 582 |
| bsd | getpid | 2 | 580 |
| x11r4 | getpid | 3p | 575 |
| debian | getpid | 2 | 569 |
| opendarwin | getpid | 2 | 507 |
| php | getpid | 3p | 502 |
| mojave | getpid | 2 | 501 |
| hpux | getpid | 2 | 492 |
| osf1 | getpid | 2 | 488 |
| xfree86 | getpid | 3p | 476 |
| osx | getpid | 2 | 465 |
| redhat | getpid | 2 | 450 |
| centos | getpid | 3p | 441 |
| netbsd | getpid | 2 | 433 |
| sunos | getpid | 2 | 417 |
| suse | getpid | 3p | 414 |
| freebsd | pdgetpid | 2 | 399 |
| plan9 | getpid | 2 | 388 |
| ultrix | getpid | 2 | 352 |
| linux | getpid | 3 | 298 |
| bsd | getpid | 3f | 277 |
| sunos | ucred_getpid | 3c | 244 |
| centos | getpidcon | 3 | 212 |
| debian | getpidcon | 3 | 200 |
| opensolaris | ucred_getpid | 3c | 186 |
| centos | getpidcon_raw | 3 | 182 |
| php | posix_getpid | 3 | 180 |