GETPID(2) Linux Programmer's Manual GETPID(2)
getpid, getppid - get process identification
#include <sys/types.h>
#include <unistd.h>
pid_t getpid(void);
pid_t getppid(void);
getpid() returns the process ID of the calling process. (This is often
used by routines that generate unique temporary filenames.)
getppid() returns the process ID of the parent of the calling process.
These functions are always successful.
POSIX.1-2001, 4.3BSD, SVr4.
fork(2), kill(2), exec(3), mkstemp(3), tempnam(3), tmpfile(3), tmp-
nam(3), credentials(7)
This page is part of release 3.05 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 1993-07-23 GETPID(2)