title: Download and install .sh from Dockerfile
body: <p>I have a docker image that i have created from a custom dockerfile.</p>
  <p>Now i want to install another program on it, that is installed through downloading and then running a <code>.sh</code> file.</p>
  <p>I have already curl on the dockerfile and while i know how to download a file with curl in my system, i am not sure if the downloading and installation is the same inside docker - from a dockerfile.</p>
  <p>Do i need to download it to a specific directory and do i have to delete it afterwards?</p>