title: AWK/SED. How to remove parentheses in simple text file
body: <p>I have a text file looking like this:  </p>
  
  <pre><code>(-9.1744438E-02,7.6282293E-02) (-9.1744438E-02,7.6282293E-02)  ... and so on.
  </code></pre>
  
  <p>I would like to modify the file by removing all the parenthesis and a new line for each couple
  so that it look like this: </p>
  
  <pre><code>-9.1744438E-02,7.6282293E-02
  -9.1744438E-02,7.6282293E-02
  ...
  </code></pre>
  
  <p>A simple way to do that?</p>
  
  <p>Any help is appreciated,</p>
  
  <p>Fred</p>