Batch create folder with specific names

The following Automator script will prompt you for the folder where you want to create the three sub-folders. It will create them if they do not already exist, and then open a new Finder window on the contents of the chosen folder. It completes in around 8 secs.

Steps:

1. Launch Automator from your /Applications folder
   1. New Document : Desktop : Application : Choose.
2. You will now have libraries on your left, and a larger workflow window on your right. Drag and drop the following actions in order into the right-hand workflow window:
   1. Files & Folders : Ask for Finder Items
      1. Set to image settings
   2. Utilities : Run Shell Script
      1. Set the action settings to those in the above image settings
      2. Remove any boilerplate text (e.g. for loop)
      3. Copy and paste the Code from below into the Run Shell Script window
3. File menu : Save to your Desktop with a meaningful name
4. Quit Automator
5. Double-click the application on the Desktop

Code

#!/bin/zsh

typeset -ga folders=(Client Email Output)

for f in "$@"
do
	for sf in ${folders};
	do
		# make subfolders if they do not already exist, otherwise skip
		[[ -d "${f:a}/${sf}" ]] && continue
		mkdir -p "${f:a}/${sf}"
	done
	# open the current selected folder in a new Finder window
	/usr/bin/osascript -e "tell application \"Finder\" to open folder POSIX file \"$f\""
done
exit 0