title: How to run python script on terminal (ubuntu)?
body: <p>I'm new with python, I've been learning for a few weeks. However now I've just changed my OS and I'm now using ubuntu and I can't run any script on my terminal. </p>
  
  <p>I made sure to have the <code>#!/usr/bin/env python</code>
  but when I go to the terminal and type, for example <code>python test.py</code>
  the terminal shows an error message like this </p>
  
  <blockquote>
    <p>python: can't open file 'test.py': [Errno 2] No such file or directory  </p>
  </blockquote>
  
  <p>what do I do?<br>
  I must save the file in any specific folder to make it run on terminal?</p>