title: How to delete everything in a string after a specific character?
body: <p>Example:</p>
  
  <pre><code>    before: text_before_specific_character(specific_character)text_to_be_deleted
      after: text_before_specific_character
  </code></pre>
  
  <p>I know that it can be done with 'sed'. But i'm stuck. Can someone help me out?</p>