title: gcloud --format concatenate string
body: <p>I was thinking if it is possible to concatenate a string using <em>gcloud</em> --format</p>
  <p>For example:</p>
  <pre><code>gcloud redis instances describe redis1 --region us-central1 --format &quot;redis://value(host):value(port)&quot;
  </code></pre>
  <p>which results on <code>redis://10.104.154.107:6379</code></p>
  <p>Is it possible?</p>