Print env variables (Perl)

This code can be found in Chapter 2 of Windows Server Cookbook

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# This code prints the environment variables.
# ---------------------------------------------------------------
# Adapted from VBScript code contained in the book:
#      "Windows Server Cookbook" by Robbie Allen
# ISBN: 0-596-00633-0
# ---------------------------------------------------------------
use Win32::OLE qw(in);
$Win32::OLE::Warn = 3;

# ------ SCRIPT CONFIGURATION ------
$strComputer = '.';
# ------ END CONFIGURATION ---------
$objWMI = Win32::OLE->GetObject('winmgmts:\\\\' . $strComputer . '\\root\\cimv2');
$colVars = $objWMI->InstancesOf('Win32_Environment');
foreach my $objVar (in $colVars) {
    print $objVar->Name . ': ' . $objVar->variableValue . ' (' . $objVar->Username . ')', "\n";
}

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