title: How to send files as arguments of docker commands?
body: <p>I'm not sure that I'm trying to do it the right way, but I would like to use docker.io as a way to package some programs that need to be run from the host. </p>
  
  <p>However these applications take filenames as arguments and need to have at least read access. Some other applications generate files as output and the user expects to retrieve those files. </p>
  
  <p>What is the docker way of dealing with files as program parameters?</p>