| OS | Man Page | Section | Hits |
|---|---|---|---|
| v7 | getpid | 2 | 1,245 |
| minix | getpid | 2 | 1,034 |
| linux | getpid | 2 | 657 |
| freebsd | getpid | 2 | 647 |
| opensolaris | getpid | 2 | 592 |
| posix | getpid | 3p | 545 |
| centos | getpid | 2 | 538 |
| bsd | getpid | 2 | 518 |
| debian | getpid | 2 | 500 |
| x11r4 | getpid | 3p | 496 |
| suse | getpid | 2 | 476 |
| opendarwin | getpid | 2 | 450 |
| mojave | getpid | 2 | 440 |
| php | getpid | 3p | 429 |
| osf1 | getpid | 2 | 425 |
| hpux | getpid | 2 | 422 |
| xfree86 | getpid | 3p | 414 |
| osx | getpid | 2 | 410 |
| redhat | getpid | 2 | 396 |
| centos | getpid | 3p | 387 |
| suse | getpid | 3p | 356 |
| freebsd | pdgetpid | 2 | 352 |
| netbsd | getpid | 2 | 352 |
| plan9 | getpid | 2 | 340 |
| sunos | getpid | 2 | 334 |
| ultrix | getpid | 2 | 304 |
| linux | getpid | 3 | 275 |
| bsd | getpid | 3f | 244 |
| sunos | ucred_getpid | 3c | 214 |
| centos | getpidcon | 3 | 178 |
| debian | getpidcon | 3 | 175 |
| opensolaris | ucred_getpid | 3c | 173 |
| php | posix_getpid | 3 | 167 |
| centos | getpidcon_raw | 3 | 160 |