title: what's the difference of echoing the variables in this way?
body: <p>What is the difference of echoing these variable in bash scripting?</p>
  
  <p>EXAMPLE:</p>
  
  <p>I declare a variable</p>
  
  <pre><code>VARIABLE="Hello World"
  
  echo $VARIABLE
  </code></pre>
  
  <p>What's the difference between the one above and this below?</p>
  
  <pre><code>echo ${VARIABLE}
  </code></pre>
  
  <p>Does it make a difference if I put {} or not?</p>