title: Delete a specific string with tr
body: <p>Is it possible to delete a specific string with <code>tr</code> command in a UNIX-Shell?
  For example: If I type:</p>
  
  <pre><code>tr -d "1."
  </code></pre>
  
  <p>and the input is <code>1.1231</code>, it would show <code>23</code> as an output, but I want it to show <code>1231</code> (notice only the first <code>1</code> has gone). How would I do that?</p>
  
  <p>If you know a solution or a better way, please explain the syntax since I don't want to just copy&amp;paste but also to learn.</p>
  
  <p>I have huge problems with awk, so if you use this, please explain it even more.</p>