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diff --git a/program/examples/shared-demo.pl.in b/program/examples/shared-demo.pl.in
--- /dev/null
@@ -0,0 +1,215 @@
+#! @PERL@
+
+
+END {
+ print "not ok 1\n" unless $loaded;
+ unlink "demo.rrd";
+}
+
+sub ok
+{
+ my($what, $result) = @_ ;
+ $ok_count++;
+ print "not " unless $result;
+ print "ok $ok_count $what\n";
+}
+
+#makes programm work AFTER install
+use lib qw( @prefix@/lib/perl );
+
+use strict;
+use vars qw(@ISA $loaded);
+
+use RRDs;
+$loaded = 1;
+my $ok_count = 1;
+
+ok("loading",1);
+
+######################### End of black magic.
+
+my $STEP = 100;
+my $RUNS = 500;
+my $GRUNS = 4;
+my $RRD1 = "shared-demo.rrd";
+my $RRD2 = "shared-demob.rrd";
+my $PNG1 = "shared-demo1.png";
+my $PNG2 = "shared-demo2.png";
+my $time = 30*int(time/30);
+my $START = $time-$RUNS*$STEP;
+
+my @options = ("-b", $START, "-s", $STEP,
+ "DS:a:GAUGE:2000:U:U",
+ "DS:b:GAUGE:200:U:U",
+ "DS:c:GAUGE:200:U:U",
+ "DS:d:GAUGE:200:U:U",
+ "DS:e:DERIVE:200:U:U",
+ "RRA:AVERAGE:0.5:1:5000",
+ "RRA:AVERAGE:0.5:10:500");
+
+print "* Creating RRD $RRD1 starting at $time.\n\n";
+RRDs::create $RRD1, @options;
+
+my $ERROR = RRDs::error;
+ok("create A", !$ERROR); # 2
+if ($ERROR) {
+ die "$0: unable to create `$RRD1': $ERROR\n";
+}
+
+print "* Creating RRD $RRD2 starting at $time.\n\n";
+RRDs::create $RRD2, @options;
+
+$ERROR= RRDs::error;
+ok("create B",!$ERROR); # 3
+if ($ERROR) {
+ die "$0: unable to create `$RRD2': $ERROR\n";
+}
+
+my $last = RRDs::last $RRD1;
+if ($ERROR = RRDs::error) {
+ die "$0: unable to get last `$RRD1': $ERROR\n";
+}
+ok("last A", $last == $START); # 4
+
+$last = RRDs::last $RRD2;
+if ($ERROR = RRDs::error) {
+ die "$0: unable to get last `$RRD2': $ERROR\n";
+}
+ok("last B", $last == $START); # 5
+
+print "* Filling $RRD1 and $RRD2 with $RUNS*5 values. One moment please ...\n";
+print "* If you are running over NFS this will take *MUCH* longer\n\n";
+
+srand(int($time / 100));
+
+@options = ();
+
+my $counter = 1e7;
+for (my $t=$START+1;
+ $t<$START+$STEP*$RUNS;
+ $t+=$STEP+int((rand()-0.5)*7)){
+ $counter += int(2500*sin($t/2000)*$STEP);
+ my $data = (1000+500*sin($t/1000)).":".
+ (1000+900*sin($t/2330)).":".
+ (2000*cos($t/1550)).":".
+ (3220*sin($t/3420)).":$counter";
+ push(@options, "$t:$data");
+ RRDs::update $RRD1, "$t:$data";
+ if ($ERROR = RRDs::error) {
+ die "$0: unable to update `$RRD1': $ERROR\n";
+ }
+}
+
+RRDs::update $RRD2, @options;
+
+if ($ERROR = RRDs::error) {
+ die "$0: unable to update `$RRD2': $ERROR\n";
+}
+
+print "* Creating $GRUNS graphs: $PNG1 & $PNG2\n\n";
+my $now = $time;
+for (my $i=0;$i<$GRUNS;$i++) {
+ my @rrd_pngs = ($RRD1, $PNG1, $RRD2, $PNG2);
+ while (@rrd_pngs) {
+ my $RRD = shift(@rrd_pngs);
+ my $PNG = shift(@rrd_pngs);
+ my ($graphret,$xs,$ys) = RRDs::graph $PNG, "--title", 'Test GRAPH',
+ '--base', '1024',
+ "--vertical-label", 'Dummy Units', "--start", (-$RUNS*$STEP),
+ "--end", $time,
+ "--interlace", "--imgformat","PNG",
+ "DEF:alpha=$RRD:a:AVERAGE",
+ "DEF:beta=$RRD:b:AVERAGE",
+ "DEF:gamma=$RRD:c:AVERAGE",
+ "DEF:delta=$RRD:d:AVERAGE",
+ "DEF:epsilon=$RRD:e:AVERAGE",
+ "CDEF:calc=alpha,beta,+,2,/,100,*,102,/",
+ "AREA:alpha#0022e9:Short",
+ "GPRINT:calc:MAX:Max calc %1.2lf",
+ "STACK:beta#00b871:Demo Text",
+ "GPRINT:calc:AVERAGE:Average calc %1.2lf",
+ "STACK:beta#0ad871:Demo Text 2",
+ "LINE1:gamma#ff0000:Line 1",
+ "LINE2:delta#888800:Line 2",
+ "LINE3:calc#00ff44:Line 3",
+ "LINE3:epsilon#000000:Line 4",
+ "HRULE:1500#ff8800:Horizontal Line at 1500",
+ "PRINT:alpha:AVERAGE:Average Alpha %1.2lf",
+ "PRINT:alpha:MIN:Min Alpha %1.2lf",
+ "PRINT:alpha:MAX:Max Alpha %1.2lf",
+ "GPRINT:calc:MIN:Min calc %1.2lf",
+ "VRULE:".($now-3600)."#008877:60 Minutes ago",
+ "VRULE:".($now-7200)."#008877:120 Minutes ago";
+
+ if ($ERROR = RRDs::error) {
+ die "ERROR: $ERROR\n";
+ } else {
+ print "Image Size: ${xs}x${ys}\n";
+ print "Graph Return:\n",(join "\n", @$graphret),"\n\n";
+ }
+ }
+}
+
+
+
+my ($start,$step,$names,$array) = RRDs::fetch $RRD1, "AVERAGE";
+$ERROR = RRDs::error;
+die "ERROR: $ERROR\n" if $ERROR ;
+print "start=$start, step=$step\n";
+print " ";
+map {printf("%12s",$_)} @$names ;
+print "\n";
+foreach my $line (@$array){
+ print "".localtime($start)," ";
+ $start += $step;
+ foreach my $val (@$line) {
+ printf "%12.1f", $val;
+ }
+ print "\n";
+}
+
+
+
+my ($start,$end,$step,$col_cnt,$legend,$data) =
+ RRDs::xport ("-m", 400,
+ "--start", "now-1day",
+ "--end", "now",
+ "DEF:alpha=$RRD1:a:AVERAGE",
+ "DEF:beta=$RRD1:d:AVERAGE",
+ "CDEF:calc=alpha,beta,+,2,/,100,*,102,/",
+ "XPORT:alpha:original ds",
+ "XPORT:calc:calculated values",
+ );
+
+my $ERROR = RRDs::error;
+die "$0: unable to xport: $ERROR\n" if $ERROR;
+
+print "\nrrdxport test:\n\n";
+print "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n\n";
+print "<xport>\n";
+print " <meta>\n";
+print " <start>$start</start>\n";
+print " <step>$step</step>\n";
+print " <end>$end</end>\n";
+print " <rows>", $#$data + 1, "</rows>\n";
+print " <columns>$col_cnt</columns>\n";
+print " <legend>\n";
+foreach my $entry (@$legend) {
+ print " <entry>$entry</entry>\n";
+}
+print " </legend>\n";
+print " </meta>\n";
+print " <data>\n";
+my $row_counter = 0;
+foreach my $row (@$data) {
+ $row_counter++;
+ print " <row id=\"$row_counter\"><t is=\"", scalar localtime($start), "\">$start</t>";
+ $start += $step;
+ foreach my $val (@$row) {
+ printf ("<v>%1.10e</v>",$val) if $val ne '';
+ print "<v>NaN</v>" if $val eq '';
+ }
+ print "</row>\n";
+}
+print " </data>\n";
+print "</xport>\n";