Perl 5 version 22.4 documentation

getppid

Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage
  • getppid

    Returns the process id of the parent process.

    Note for Linux users: Between v5.8.1 and v5.16.0 Perl would work around non-POSIX thread semantics the minority of Linux systems (and Debian GNU/kFreeBSD systems) that used LinuxThreads, this emulation has since been removed. See the documentation for $$ for details.

    Portability issues: getppid in perlport.