title: How to get the file data from access environment variable values without build the new .env file?
body: <p>First, I export the file path by terminal like <code>export DB_PASS=/home/Hang/git/pass/password.txt</code></p>
  <p>MY password.txt:</p>
  <pre><code>T8#34bc
  </code></pre>
  <p>After than, I try to get back the password on my python script.</p>
  <pre><code>import os
  
  print(os.environ.get(DB_PASS))
  </code></pre>
  <p>And it will print the path<code>/home/Hang/git/pass/password.txt</code>
  How can I get the password without build the new .env file?</p>