GETPID(2) — UNIX Programmer’s Manual
NAME
getpid, getppid − get process identification
SYNOPSIS
pid = getpid()
int pid;
ppid = getppid()
int ppid;
DESCRIPTION
Getpid returns the process ID of the current process. Most often it is used to generate uniquely-named temporary files.
Getppid returns the process ID of the parent of the current process.
SEE ALSO
4th Berkeley Distribution — Revision 1.2 of 19/10/88