Traverse directories, mount ISOs and copy files out of them

iso_mount_copy.sh

#!/bin/bash

printf '\e[31m   ***   This command will traverse subfolders               ***\e[0m\n'
printf '\e[31m   ***   and mount each ISO found and copy the contents      ***\e[0m\n'
printf '\e[31m   ***   to the directory of the ISO, then unmount the ISO   ***\e[0m\n'
printf '\e[31m   ***   and delete it permanently.                          ***\e[0m\n'

read -r -p "Are you sure you would like to proceed? [y/N] " response
case $response in
    [yY][eE][sS]|[yY])
                for i in $(ls -d */)
                do
                        cd $i
                        echo "Entering "$i
                        if hdiutil attach *.iso; then
                                echo "Copying files"
                                rsync -ah --progress /Volumes/CDROM/ .
                                hdiutil detach /Volumes/CDROM
                                echo "Removing ISO from "$i
                                rm *.iso
                                echo "Returning to initial folder"
                                cd ..
                        else
                                cd ..
                                printf "Either "$i"\nalready completed, or no ISO found"
                        fi
                done
                ;;
        *)
                echo -e "\e[32mExiting now\e[0m"
                ;;
esac