title: Unable to add path to .bashrc in circleci docker image
body: <p>I am trying to install <code>conda</code> inside a circleci docker image and add it to the <code>.bashrc</code> file.<br>
  Here're some relevant portions from <code>/.circleci/config.yml</code>:</p>
  
  <pre><code>version: 2
  
  jobs:
    build:
      docker:
        - image: circleci/python:3.5
      environment:
        BASH_ENV: /home/circleci/.bashrc
        DISTRIB: "conda"
        PYTHON_VERSION: "3.5"
        NUMPY_VERSION: "*"
        SCIPY_VERSION: "*"
        SCIKIT_LEARN_VERSION: "*"
        MATPLOTLIB_VERSION: "*"
      steps:
        - checkout
        - run: wget http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O ~/miniconda.sh
        - run: chmod +x ~/miniconda.sh &amp;&amp; ~/miniconda.sh -b
        - run: echo "export PATH=/home/circleci/miniconda3/bin:$PATH" &gt;&gt; $BASH_ENV
        - run: echo $PATH  # Added for troubleshooting.
  </code></pre>
  
  <p>However here is the output I get:</p>
  
  <pre><code>====&gt;&gt; echo "export PATH=/home/circleci/miniconda3/bin:$PATH" &gt;&gt; $BASH_ENV
    #!/bin/bash -eo pipefail
  echo "export PATH=/home/circleci/miniconda3/bin:$PATH" &gt;&gt; $BASH_ENV
  ====&gt;&gt; echo $PATH
    #!/bin/bash -eo pipefail
  echo $PATH
  /usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
  </code></pre>
  
  <p>So the path to conda is not getting added to <code>.bashrc</code>.</p>
  
  <p>How do I solve this? I am at my wits end.<br>
  This is supposed to work.</p>
  
  <p>Appreciate the help!</p>