title: How to get few lines from a .gz compressed file without uncompressing
body: <p>How to get the first few lines from a gziped file ?
  I tried zcat, but its throwing an error</p>
  
  <pre><code>zcat CONN.20111109.0057.gz|head
  CONN.20111109.0057.gz.Z: A file or directory in the path name does not exist.
  </code></pre>