How do I Batch Rename Folders in OSX?

So I have been trying to rename about 5000 folders based on a CSV (Old name, Newname)

This is a one time operation, once hdkjsh2-2f8c-46b9-bbdb_doc is converted to 3 then it will not need to be touched again.

I have tried the solution here (Setting up an automator workflow with a command script) but found that it does not do a great deal when it comes to folder/directory names and all the guides/documentation is around file names and not folder. Any suggestions would be much appreciated

Example of CSV

Doc_Location,  New_ID
hdkjsh2-2f8c-46b9-bbdb_doc , 3

Solution

Please make a backup before trying the following.

Save the following script in your HOME directory as renamer:

#!/bin/bash

cat "file.csv" | while IFS=' ,' read dir new ; do
   if [ -d "$dir" ]; then
      echo Rename $dir as $new
      #mv "$dir" "$new"
   else
      echo "ERROR: Directory $dir not found - ignored"
   fi
done

Then start Terminal and make the script executable by running:

chmod +x $HOME/renamer

Then change directory to where your directories are that need renaming:

cd path/to/things/needing/renaming

Make sure you have your CSV, called file.csv saved in that directory, then run with:

$HOME/renamer

It doesn't actually do anything, it just tells you what it would do. If it looks correct, edit $HOME/renamer and remove the single # on the line that says:

#mv "$dir" "$new"

so that is looks like:

mv "$dir" "$new"

Then be doubly sure you have made a backup and run the script again:

$HOME/renamer