title: sorting with coreutil's sort
body: <p>I am trying to sort a table based on the first value from smallest to largest with the gnu-coreutils sort command.</p>
  
  <p>My table looks something like this:</p>
  
  <p>file.txt</p>
  
  <pre><code>100,0.8,0.323, ... some more data
  2,0.323,0,323, ...
  4, ...
  53, ...
  .
  .
  121, ...
  </code></pre>
  
  <p>I have tried doing the following:</p>
  
  <pre><code>sort -n -k 1 file.txt
  </code></pre>
  
  <p>but I get things like...</p>
  
  <pre><code>10,0,10,10
  100,9,1,10
  101,9,2,11
  102,9,3,12
  103,9,4,13
  104,9,5,14
  105,9,6,15
  106,9,7,16
  107,9,8,17
  108,9,9,18
  21,1,10,11
  32,2,10,12
  43,3,10,13
  54,4,10,14
  </code></pre>
  
  <p>I want the logical numerical order.</p>
  
  <p>Ted.</p>