title: How to update already installed IntelliJ IDEA on Ubuntu?
body: <p>Currently, I have IntelliJ IDEA 2016.3 installed in my Ubuntu 16.04  for Java programming. I have installed it through the IntelliJ website and not the <code>ppa</code>. Upon launching it, I get an <code>update available</code> notification on bottom right corner and upon clicking <code>update</code>, it opens the IntelliJ IDEA webpage for downloading the latest IDE tar file. I know that in order to install it, I need to download the tar file, untar it in<code>usr/local</code>, and run idea.sh from the bin folder. Even after doing that, when I search for IntelliJ in the Unity Dash, I see the icon for the old 2016.3 version and upon clicking it, it opens the same old version. </p>
  
  <p>So my question is, how can I update the entire existing IntelliJ platform and see it as the result upon search in the Unity Dash? Can I update it in the same way in which I can update the existing plug-ins and see them in effect upon restarting IntelliJ?</p>