title: Insert Header Line into CSV File
body: <p>I have a CSV file and I want to insert a header line to the CSV file.</p>
  
  <p>The header will be:</p>
  
  <blockquote>
  <pre><code>SYSNAME,OBJSTRUC,AddChange,EN
  </code></pre>
  </blockquote>
  
  <p>When I use:</p>
  
  <pre><code>echo hello new line &gt; filename.csv
  </code></pre>
  
  <p>it adds the new line but deletes everything from the CSV file.</p>