diff --git a/agestat/GNUmakefile b/agestat/GNUmakefile
new file mode 100644
index 0000000..88a59b3
--- /dev/null
+++ b/agestat/GNUmakefile
@@ -0,0 +1,26 @@
+include GNUmakevars
+
+BINDIR=/usr/local/dfstat
+
+all: agestat
+
+clean:
+	rm agestat customize
+
+install: $(BINDIR) $(BINDIR)/agestat
+
+%: %.pl customize
+	sh ./customize < $< > $@
+	chmod +x $@
+
+%: %.sh customize
+	sh ./customize < $< > $@
+	chmod +x $@
+
+customize: configure
+	sh ./configure
+
+$(BINDIR):
+	mkdir -p $@
+
+include GNUmakerules
diff --git a/agestat/agestat.pl b/agestat/agestat.pl
new file mode 100755
index 0000000..3c3f64b
--- /dev/null
+++ b/agestat/agestat.pl
@@ -0,0 +1,53 @@
+#!@@@perl@@@
+
+use File::stat;
+use File::Find;
+
+$now = time();
+$log_2 = log(2);
+
+sub wanted {
+
+    $st = lstat($_);
+    $age = $now - ($st->atime > $st->mtime ? $st->atime : $st->mtime );
+    #print $File::Find::name, ": $age sec, ", $st->size, " bytes, ", $st->nlink, " links\n";
+    $log2age = log($age >= 1 ? $age : 1) / $log_2;
+    $hist[$log2age] += $st->size / $st->nlink;
+}
+
+sub logtime2str {
+    my ($lt) = (@_);
+
+    $t = 1 << $lt;
+
+    if ($t < 60) {
+	return sprintf ("%5.1f s", $t);
+    } elsif ($t < 3600) {
+	return sprintf ("%5.1f m", $t/60);
+    } elsif ($t < 3600 * 24) {
+	return sprintf ("%5.1f h", $t/3600);
+    } elsif ($t < 3600 * 24 * 365.2422) {
+	return sprintf ("%5.1f d", $t/(3600*24));
+    } else {
+	return sprintf ("%5.1f y", $t/(3600*24*365.2422));
+    }
+}
+
+
+find(\&wanted, @ARGV);
+
+print "\n\n";
+
+$sum = 0;
+
+for ($i = 0; $i <= $#hist; $i++) {
+    $sum += $hist[$i];
+}
+
+for ($i = 0; $i <= $#hist; $i++) {
+    $h = $hist[$i];
+    $c += $h;
+    printf("%2d\t%s\t%12.0f\t%5.1f\t%12.0f\t%5.1f\n", $i, logtime2str($i), $h, $h * 100 / $sum, $c, $c * 100 / $sum);
+}
+print("#-------------------------------------------\n");
+printf("total\t\t%12.0f\t%5.1f\n",  $sum, $sum * 100 / $sum);
diff --git a/agestat/configure b/agestat/configure
new file mode 100644
index 0000000..981a6b2
--- /dev/null
+++ b/agestat/configure
@@ -0,0 +1,30 @@
+#!/bin/sh
+#
+echo "#!/bin/sh" > customize.$$
+echo "sed \\" >> customize.$$
+chmod +x customize.$$
+
+################################################################
+# find a working perl:
+#
+for i in /usr/bin/perl /usr/local/bin/perl /usr/bin/perl5 /usr/local/bin/perl5
+do
+    if $i -e 'exit ($] < 5.000)'
+    then
+	echo $i works
+	perl="$i"
+	break
+    fi
+done
+if [ -z "$perl" ]
+then
+    could not find a working perl command, sorry.
+    exit 1
+fi
+echo "  -e 's,@@@perl@@@,$perl,g' \\" >> customize.$$
+
+
+echo  >> customize.$$
+
+mv customize.$$ customize
+