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cleanfilenames.py

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+#!/usr/bin/python3
+
+import sys, re, os
+
+errortxt = " mydirectory\nRenames _all_ strange filenames in a given directory. No other options, edit the source."
+count = 0
+
+# Check for one single commandlineparameter
+try:
+    dirname = sys.argv[1]
+except:
+    sys.exit(sys.argv[0] + errortxt)
+
+# Regex to eliminate everything not belonging into a filename
+# Ey, this is not zombiecode!
+# whitelist="[^a-z.A-Z0-9äöüÄÖÜß_+-]"    # All trash eliminate
+# whitelist="[^a-z.A-Z0-9äöüÄÖÜß_+-][^a-z.A-Z0-9äöüÄÖÜß_+-]*" # Reduce trash to "-"
+whitelist = "[^a-z.A-Z0-9äöüÄÖÜß_+-][^a-z.A-Z0-9äöüÄÖÜß_+-]*"
+cutminus = "^-+"
+
+# Open first commandline parameter as a directory
+if os.path.isdir(dirname):
+    for filename in os.listdir(dirname):
+        tmpfilename = re.sub(whitelist, "-", filename)
+        # repair leading "-" and prepend a "0"
+        newfilename = re.sub(cutminus, "0-", tmpfilename)
+        # Test for already existing target
+        if os.path.exists(dirname + "/" + newfilename) == False:
+            # show what is happening
+            print("moving ", filename, " to ", newfilename)
+            os.rename(dirname + "/" + filename, dirname + "/" + newfilename)
+            count += 1
+        else:
+            print("Not overwriting existing file: ", newfilename)
+# Not a directory - exit and say someting nasty
+else:
+    sys.exit(sys.argv[0] + errortxt)
+
+# Give a summary.
+print("\n", count, " files renamed\n")