title: echo value inside a variable?
body: <blockquote>
    <p>x=102 y=x</p>
  </blockquote>
  
  <p>means when i echo $y it gives x
  echo $y
  x      --and not 102</p>
  
  <p>and when i echo $x it give 102</p>
  
  <p>lets say I dnt know what is inside y</p>
  
  <p>and i want the value of x to be echoed with using y someting like this </p>
  
  <pre><code>a=`echo $(echo $y)`
  echo $a
  </code></pre>
  
  <p>Ans 102</p>