title: grep a string between two single quotes using only grep function
body: <p>Get a string between two single quotes using only grep function</p>
  
  <pre><code> 0x00000000: 00000000 0000000f 00320031 00340033 '........1.2.3.4.'
  </code></pre>
  
  <p>I want my output as ........1.2.3.4.</p>
  
  <p>I tried <code>grep -o '\'[^\']*'</code> </p>
  
  <p>but it is not working ? </p>