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getpid

NAME

getpid, getppid - get process identification

SYNOPSIS

#include <sys/types.h>
#include <unistd.h>

pid_t getpid(void);
pid_t getppid(void);

DESCRIPTION

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.

ERRORS

These functions are always successful.

CONFORMING TO

POSIX.1-2001, 4.3BSD, SVr4

SEE ALSO

fork(2), kill(2), exec(3), mkstemp(3), tempnam(3), tmpfile(3), tmpnam(3), credentials(7)

COLOPHON

This page is part of release 2.78 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/.