title: gcloud beta logging for trailing logs
body: <p>I just found out about google new "gcloud beta logging" service.
  The classic sample they show is something like this:</p>
  
  <pre><code> gcloud beta logging write my-test-log "A simple entry"
  </code></pre>
  
  <p>But I would like to log every new entry in a specific log file. For example:</p>
  
  <pre><code> tail -F My_Log_File.txt | grep  gcloud beta logging write my-test-log  
  </code></pre>
  
  <p>What is the best practice for this operation?</p>