title: docker: "build" requires 1 argument. See 'docker build --help'
body: <p>Trying to follow the instructions for building a docker image from the docker website.</p>
  
  <p><a href="https://docs.docker.com/examples/running_redis_service/">https://docs.docker.com/examples/running_redis_service/</a></p>
  
  <p>this is the error I get will following the instructions on the doc and using this Dockerfile</p>
  
  <pre><code>FROM        ubuntu:14.04
  RUN         apt-get update &amp;&amp; apt-get install -y redis-server
  EXPOSE      6379
  ENTRYPOINT  ["/usr/bin/redis-server"]
  
  
  sudo docker build -t myrepo/redis
  docker: "build" requires 1 argument. See 'docker build --help'.
  </code></pre>
  
  <p>How do  resolve?</p>