4 title: "Checking your environment"
8 h1. Checking your environment
10 Check that you are able to access the Arvados API server using the following command:
12 notextile. <pre><code>$ <span class="userinput">arv user current</span></code></pre>
14 If you receive the message "ARVADOS_API_HOST and ARVADOS_API_TOKEN need to be defined as environment variables", follow the instructions for "getting an API token,":{{site.basedoc}}/user/reference/api-tokens.html then return to this document.
16 When @arv user current@ is able to access the API server, it will print out the unique identifier associated with your account. Here is an example (you will receive a different identifier):
18 bc. qr1hi-xioed-9z2p3pn12yqdaem
20 This unique identifier represents your identity in the Arvados system and is similar to the concept of a pointer or a foreign key. You may de-reference (get the contents of) any identifier returned by the "arv" command using the @-h@ command line option. For example:
23 <pre><code>$ <span class="userinput">arv -h user current</span>
25 "href":"https://qr1hi.arvadosapi.com/arvados/v1/users/qr1hi-xioed-9z2p3pn12yqdaem",
26 "kind":"arvados#user",
27 "etag":"8u0xwb9f3otb2xx9hto4wyo03",
28 "uuid":"qr1hi-tpzed-92d3kxnimy3d4e8",
29 "owner_uuid":"qr1hi-tpqed-23iddeohxta2r59",
30 "created_at":"2013-12-02T17:05:47Z",
31 "modified_by_client_uuid":"qr1hi-xxfg8-owxa2oa2s33jyej",
32 "modified_by_user_uuid":"qr1hi-tpqed-23iddeohxta2r59",
33 "modified_at":"2013-12-02T17:07:08Z",
34 "updated_at":"2013-12-05T19:51:08Z",
35 "email":"you@example.com",
36 "full_name":"Example User",
37 "first_name":"Example",
39 "identity_url":"https://www.google.com/accounts/o8/id?id=AItOawnhlZr-pQ_Ic2f2W22XaO02oL3avJ322k1",
47 You are now ready proceed to the first tutorial: "Fetching data from Arvados using Keep.":{{site.basedoc}}/user/tutorials/intro-keep.html