These Drush commands provide basic support for manipulating CCK fields in Drupal. So far included are:
  - cck - show all content types.
  - cck-list - given a content type show a list of fields. Show more detailed information for that field.
  - cck-add-textfield - add a simple CCK textfield to a content type.
  - cck-delete - delete fields from a content type.

Please test and contribute!