title: bash remove everything before character
body: <p>I have the following:</p>
  
  <pre><code>netstat -tuna | awk '{ print $4; }' | sed -e '1,2d'
  </code></pre>
  
  <p>which returns:</p>
  
  <pre><code>10.20.26.143:51697
  10.20.26.143:51696
  10.20.26.143:51698
  10.20.26.143:51693
  10.20.26.143:51695
  10.20.26.143:51694
  :::22
  0.0.0.0:68
  0.0.0.0:49625
  0.0.0.0:5353
  :::48727
  :::5353
  </code></pre>
  
  <p>which returns a list of all open ports.. how would i remove everything before the : character? please notice that a few ones have ::: instead of :
  i just want it to return the ports, remove all text before the last :</p>
  
  <p>i want it all in one bash command.</p>
  
  <p>thanks a lot in advance!</p>