title: Rename csv header using bash script
body: <p>I want to rename the header of a csv file using bash script. Original csv file header looks like below:</p>
  
  <pre><code>temp.csv
      ,id,too,Issue,Valid,DPT,RH,TMP,U,V
      1,1,22383,2015-01-15 00:00:00 GMT,2015-01-15 00:00:00 GMT,269.8000183,80.90000153,272.6300049,3.039999962,-0.560000002
      1
  
              id  to  Issue   Valid   DPT RH  TMP U   V
        1     2    3  4        5      6   7    8  9   10
  
  I 
  </code></pre>
  
  <p>want to rename column header as below:</p>
  
  <pre><code> Cell   id  too Issue   Valid   DPT RH  TMP U   V
      1   2    3  4        5      6   7   8  9   10
  </code></pre>