title: Bad hour in crontab file
body: <p>I am trying to run a scheduled job via crontab in linux mint. For that, I am using the crontab -e command to edit a crontab file with the following information:</p>
  
  <pre><code>0 50 * ? * * *    sh test.sh
  </code></pre>
  
  <p>After which I get the error: </p>
  
  <pre><code>"/tmp/crontab.XCXmSA/crontab":22: bad hour
  errors in crontab file, can't install.
  </code></pre>
  
  <p>I tried searching but couldn't find anything that solved the problem. Tried a bunch of different times and still nothing. Any ideas?</p>