title: Invoke function whose name is stored in a variable in bash
body: <p>Let's say I have:</p>
  
  <pre><code>function x {
      echo "x"
  }
  call_func="x"
  </code></pre>
  
  <p>Now, I can simply use <code>eval</code> as follows:</p>
  
  <pre><code>eval $call_func
  </code></pre>
  
  <p>but I was wondering if there was some other way of invoking the function (if it exists) whose name is stored in the variable: <code>call_func</code>.</p>