Update aterm_101.md to include xtoshell (#591)

docs/aterm_101.md

@@ -398,3 +398,24 @@ asset.collection.accumulator.add \
    :id path=/princeton/tigerdata \
    :cascade true
 ```
+
+## xtoshell
+
+The xtoshell command can be used to convert our API xml to the arguments to a `service.execute` command.
+
+For example:
+  In the rails console run something like:
+
+  **Note** The gsubs at the end are to remove all spaces and <arg></arg> and the session_id attribute
+
+  **Note 2** Our version of mediaflux in docker does not have this command. The xtoshell command does exist on td-meta1
+  ```
+  session_id = User.first.mediaflux_session
+  project = project.first
+  project_name = ProjectMediaflux.safe_name(project.directory)
+  project_namespace = "#{Rails.configuration.mediaflux['api_root_ns']}/#{project_name}NS"
+  store_name = Store.default(session_id: session_id).name
+  namespace = Mediaflux::Http::NamespaceCreateRequest.new(namespace: project_namespace, description: "Namespace for project #{project.title}", store: store_name, session_token: session_id) 
+ puts namespace.xml_payload.gsub("\n","").gsub("  "," ").gsub("  "," ").gsub("  "," ").gsub("\"","'").gsub("> <","><").gsub("<args>","").gsub("</args>","").gsub(/session='.*'/,"")
+```
+Copy the output and in aterm run `service.execute` and paste the output