title: awk print matching line and line before the matched
body: <p>Following is what I am trying to do using awk. Get the line that matches the regex and the line immediately before the matched and print. I can get the line that matched the regex but not the line immediately before that:</p>
  
  <pre><code>awk '{if ($0!~/^CGCGGCTGCTGG/) print $0}' 
  </code></pre>