title: How to insert newline character after comma in `),(` with sed?
body: <p>How to insert newline character after comma in <code>),(</code> with sed?</p>
  
  <pre><code>$ more temp.txt
  (foo),(bar)
  (foobar),(foofoobar)
  
  $ sed 's/),(/),\n(/g' temp.txt 
  (foo),n(bar)
  (foobar),n(foofoobar)
  </code></pre>
  
  <p>Why this doesn't work?</p>