title: Bash pass variable name as argument
body: <p>I have a simple script (let's call it script.sh):</p>
  
  <pre><code>#!/bin/bash
  
  source variables
  echo $1
  </code></pre>
  
  <p>What I want to achieve is scripts output:</p>
  
  <pre><code>255.255.255.255
  </code></pre>
  
  <p>When executed like: </p>
  
  <pre><code>./script.sh VARIABLE
  </code></pre>
  
  <p>where VARIABLE is defined in variables file:</p>
  
  <pre><code>VARIABLE=255.255.255.255
  </code></pre>
  
  <p>Is it possible?</p>