Rename nama file yang ada string letmeread

rename_books.ex

defmodule RenameBooks do
  @book_path "/home/user/Downloads"

  def get_files do
    with {:ok, files} <- File.ls(@book_path) do
      files
    else
      {:error, reason} ->
        reason
    end
  end

  def run do
    files =
      Enum.filter(get_files(), fn x ->
        fullpath = Path.join([@book_path, x])
        !File.dir?(fullpath)
      end)

    Enum.each(files, fn file ->
      if String.contains?(file, "Letmeread.net_") do
        new_name = String.replace(file, "Letmeread.net_", "")
        old_name = Path.join([@book_path, file])

        IO.puts("Renaming '#{file}' to '#{new_name}'..")
        File.rename!(old_name, Path.join([@book_path, new_name]))
      end
    end)
  end
end

RenameBooks.run()