Drupal 7: How to copy value of fields to another field

I would like to convert the fieldty开发者_如何学JAVApe of existing fields to another. A possible solution I thought of is to copy an existing field to a new field.

Does the method using VBO work in Drupal 7?

How do I do the same for the file/image field with multiple entries in Drupal 7?

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There's a module for that, http://drupal.org/project/node_convert . It may work for you!