title: Splitting a string in bash on something specific
body: <p>I had a string I cut based on a colon. I now have a string in the format of:
  <code>mon date, year Birthday</code> (input)</p>
  
  <p>What can I do so I can just have:
  mon date, year WITHOUT Birthday?
  (or in other words a desired output of:)</p>
  
  <pre><code>Mon date, year
  </code></pre>
  
  <p>Clarification: Birthday in this case is literally the string "Birthday"</p>
  
  <p>I know various posts on this website tell you how to split strings based on delimiters, but I have no idea how to split a string based on a specific word/string and couldn't find it on here</p>