Added a new script that enables use of Ledger as a smart "du".

scripts/ledger-du

@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+
+import string
+import sys
+import os
+import time
+
+from stat import *
+from os.path import *
+
+def report_file(path):
+    dir_elems = string.split(dirname(path), os.sep)
+    if dir_elems[0] == "." or dir_elems[0] == "":
+	dir_elems = dir_elems[1 :]
+    account = string.join(dir_elems, ":")
+
+    info = os.stat(path)
+    print time.strftime("%Y/%m/%d", time.localtime(info[ST_MTIME])),
+
+    print basename(path)
+    print "   ", account, "  ", info[ST_SIZE], "b"
+    print "    Equity:Files"
+    print
+
+def find_files(path):
+    entries = os.listdir(path)
+    for entry in entries:
+        entry = join(path, entry)
+	if not islink(entry):
+	    if isdir(entry) and entry != "/proc":
+		find_files(entry)
+	    else:
+		report_file(entry)
+
+args = sys.argv[1:]
+if len(args):
+    paths = args
+else:
+    paths = ["."]
+
+print """
+C 1.00 Kb = 1024 b
+C 1.00 Mb = 1024 Kb
+C 1.00 Gb = 1024 Mb
+C 1.00 Tb = 1024 Gb
+"""
+
+for path in paths:
+    find_files(path)