getpid(2) BSD System Calls Manual getpid(2)
NAME
getpid, getppid -- get parent or calling process identification
SYNOPSIS
#include <unistd.h>
pid_t
getpid(void);
pid_t
getppid(void);
DESCRIPTION
Getpid() returns the process ID of the calling process. The ID is guar-
anteed to be unique and is useful for constructing temporary file names.
Getppid() returns the process ID of the parent of the calling process.
ERRORS
The getpid() and getppid() functions are always successful, and no return
value is reserved to indicate an error.
LEGACY SYNOPSIS
#include <sys/types.h>
#include <unistd.h>
The include file <sys/types.h> is necessary.
SEE ALSO
gethostid(2), compat(5)
STANDARDS
Getpid() and getppid() conform to IEEE Std 1003.1-1988 (``POSIX.1'').
4th Berkeley Distribution June 4, 1993 4th Berkeley Distribution
Mac OS X 10.9.1 - Generated Mon Jan 6 05:55:42 CST 2014