text: import os
  import shutil
  
  
  def get_immediate_subdirectories(path):
      """
      Description: Get the immediate subdirectories in a specific path: path
      Reference:   https://stackoverflow.com/questions/800197/how-to-get-all-of-the-immediate-subdirectories-in-python
      """
      return [name for name in os.listdir(path)
              if os.path.isdir(os.path.join(path, name))]
  
  def get_all_files(path):
      """
      Description: Get the immediate subdirectories in a specific path: path
      Reference:   https://stackoverflow.com/questions/3207219/how-do-i-list-all-files-of-a-directory
      """
      return [f for f in os.listdir(path) if os.path.isfile(os.path.join(path, f))]
  
  def get_all_files_with_extension(path, ext = ".*"):
  
      if ext == ".*":
          return get_all_files(path)
      else:
          return [f for f in os.listdir(path) if f.endswith(ext)]
  