Index: tools/filldir.py
===================================================================
--- tools/filldir.py	(revision acd3905d43b2365429d36b62900aed4550a800eb)
+++ tools/filldir.py	(revision acd3905d43b2365429d36b62900aed4550a800eb)
@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 2011 Martin Sucha
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# - Redistributions of source code must retain the above copyright
+#   notice, this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright
+#   notice, this list of conditions and the following disclaimer in the
+#   documentation and/or other materials provided with the distribution.
+# - The name of the author may not be used to endorse or promote products
+#   derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+"""
+Fill a directory with N empty directories
+"""
+
+import sys
+import os
+import os.path
+
+if len(sys.argv) < 3:
+	print 'Usage: filldir <parent-dir> <count>'
+	exit(2)
+
+parent = sys.argv[1]
+num = int(sys.argv[2])
+
+i = 0
+while i < num:
+	name = hex(i)[2:].zfill(5)
+	path = os.path.join(parent, name)
+	os.mkdir(path)
+	i += 1