title: Code block usage { } in bash
body: <p>I was wondering why code block was used in this example below:</p>
  
  <pre><code>possibly_hanging_job &amp; { sleep ${TIMEOUT}; eval 'kill -9 $!' &amp;&gt; /dev/null; }
  </code></pre>
  
  <p>This could have been written like this ( without using code block as well) ..right ?</p>
  
  <pre><code>possibly_hanging_job &amp; 
  sleep ${TIMEOUT}
  eval 'kill -9 $!' &amp;&gt; /dev/null
  </code></pre>