title: exporting PATH not working in a bash shell on linux
body: <p>For example, I type to the following command:</p>
  
  <pre><code>         # PATH=$PATH:/var/test
           # echo $PATH
             ........./var/test       // working
           # export PATH
  </code></pre>
  
  <p>Next, I open another bash shell session to test if the export works by typing the following command:</p>
  
  <pre><code>         # echo $PATH
            ........      // not working as in I don't see /var/test path
  </code></pre>