bsd man page for getpid

GETPID(2)							System Calls Manual							 GETPID(2)

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
       gethostid(2)

4th Berkeley Distribution					   May 13, 1986 							 GETPID(2)