title: Setting $PATH in docker image?
body: <p>I'm creating a base image for my projects. In this base image, I will download a few .tar.gzs and extract them.</p>
  
  <p>I want to add these unzipped directories to be added to the path, so in child images, I can call up the downloaded executables directly without needing to specify the full path.</p>
  
  <p>I tried running <code>export PATH...</code> in the base image, but that doesn't seem to work (at least when i tty into it, i don't see the path updated, I assume because the export doesn't transfer over into the new bash session).</p>
  
  <p>Any other way to do this? Should I edit the .bashrc?</p>