title: unix cal command special character
body: <p>When I try "<code>cal | tail -6</code>" in my unix machine, I get - </p>
  
  <pre><code>             1  2  3
   4  5  6  7  8  9 10 
  11 12 13 14 15 16 17 
  18 19 20 21 22 23 24
  25 26 27 28 29 30
  </code></pre>
  
  <p>but when I try "<code>cal | tail -6 | awk '{print $7}'</code>", I get -</p>
  
  <pre><code>10
  17
  24
  </code></pre>
  
  <p>where is 3 going ? My requirement is basically all weekdays i.e column 2,3,4,5 &amp; 6.
  But I'm getting wrong output because of the strange behavior of "<code>cal</code>"  </p>