The CDF_ATTRENAME procedure is used to rename an existing attribute in a Common Data Format file.
CDF_ATTRENAME, Id, OldAttr, NewName
The CDF ID of the file containing the desired attribute, returned from a previous call to CDF_OPEN or CDF_CREATE.
A string containing the current name of the attribute or the attribute number to be renamed.
A string containing the new name for the attribute.
See the example for CDF_ATTPUT .