IQSS#6083 update examples in File part of Native API: 'Editing Variab…

…le Level Metadata' section.

doc/sphinx-guides/source/api/native-api.rst

@@ -1985,11 +1985,24 @@ Also note that dataFileTags are not versioned and changes to these will update t
 Editing Variable Level Metadata
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Updates variable level metadata using ddi xml ``$file``, where ``$id`` is file id::
+Updates variable level metadata using ddi xml ``FILE``, where ``ID`` is file id.
 
-    PUT https://$SERVER/api/edit/$id --upload-file $file
+A curl example using an ``ID``
+
+.. code-block:: bash
+
+  export API_TOKEN=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+  export SERVER_URL=https://demo.dataverse.org
+  export ID=24
+  export FILE=dct.xml
+
+  curl -H "X-Dataverse-key:$API_TOKEN" -X PUT $SERVER_URL/api/edit/$ID --upload-file $FILE
+
+The fully expanded example above (without environment variables) looks like this:
+
+.. code-block:: bash
 
-Example: ``curl -H "X-Dataverse-key:$API_TOKEN" -X PUT http://localhost:8080/api/edit/95 --upload-file dct.xml``
+  curl -H "X-Dataverse-key:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" -X PUT https://demo.dataverse.org/api/edit/24 --upload-file dct.xml
 
 You can download :download:`dct.xml <../../../../src/test/resources/xml/dct.xml>` from the example above to see what the XML looks like.