title: Remove spaces from a single column using bash
body: <p>I was provided with a CSV file, that in a single column, uses spaces to denote a thousands separator (eg. 11 000 instead of 11,000 or 11000). The other columns have useful spaces within them, so I need to only fix this one column. </p>
  
  <p>My data:</p>
  
  <pre><code>Date,Source,Amount
  1/1/2013,Ben's Chili Bowl,11 000.90
  </code></pre>
  
  <p>I need to get:</p>
  
  <pre><code>Date,Source,Amount
  1/1/2013,Ben's Chili Bowl,11000.90
  </code></pre>
  
  <p>I have been trying awk, sed, and cut, but I can't get it to work.</p>