title: Filter out a word from a line
body: <p>I would like to get out a word(number) from the line below but via a very simple one linear command 
  Needed string is 260.796, so I just would like to get 260.796 out of below line</p>
  
  <pre><code>xcxalpha=0.000 es enealpha=260.796 es emalpha=29.107 es
  
  
  </code></pre>