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perl function getppid

The getppid function in Perl is used to retrieve the process ID of the parent process of the current process.

Here's an example of using getppid in Perl:

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#!/usr/bin/perl

use strict;
use warnings;

# Get the process ID of the parent process
my $ppid = getppid();

print "Parent process ID: $ppid\n";

In this example, we simply call the getppid function to retrieve the process ID of the parent process of the current process. This ID is then printed to the console using the print function.

When you run this script, it will print the process ID of the parent process of the current process to the console.

Note that the behavior of getppid may depend on the operating system and the specific process being queried. Additionally, it may be necessary to have appropriate privileges to access process information for processes other than the current process.