title: Setting PATH on Mac so that it persists between sessions
body: <p>I've written a shell script on my Mac that runs fine from the folder. Trying to make it globally executable I've used the following script:</p>
  
  <p><code>export PATH="$PATH:~/scripts"</code></p>
  
  <p>Subsequently, I can run the command <code>blaster</code> from any folder. However, if I close my terminal window, it seems that the PATH gets lost and I have to run the original command again. Any idea why that <code>export PATH</code> needs to be re-established?</p>