#!/usr/bin/perl
use XML::Simple; 

$xml = new XML::Simple(KeyAttr=>[]);

my $file = '/home/works/projekte/XML/maschine.xml';
$data = $xml->XMLin($file);

	print "Temperatur: ".$data->{temp}."\n";
	print "MPI: ".$data->{mpi}."\n";

	$data->{temp}='2222';
	print $data->{temp};

	$file = $xml->XMLout($data);