Is there a way to update Drupal Core without reuploading files and following the UPDATE.php file? Something similar to how you can update a Wordpress install with a click of a button? I wasn't sure if there is a module that will allow this?
--edit--
I've attempted the "drush up" command per @Enxebre's suggestion.
I installed Drush to my shared host and it seems to be running correctly. The site is still not updating though. I checked for updates and its still at 7.22 instead of 7.23.
I also had to run an update on Drush. Here are my results from the terminal command:
Drush self update:
drush self-update
X-Powered-By: PHP/5.2.17
Content-type: text/html
A newer version of drush, 7.x-5.x-dev (2013-Aug-06), is available. Would you like to back up your current drush, version 4.3-dev, to /home1/munortap/drush-backups/drush/20130912205746 and replace it with the newer release? (y/n): y
<br />
<b>Warning</b>: fwrite(): supplied argument is not a valid stream resource in <b>/home1/munortap/public_html/drush/includes/drush.inc</b> on line <b>576</b><br />
<br />
<b>Warning</b>: fwrite(): supplied argument is not a valid stream resource in <b>/home1/munortap/public_html/drush/includes/drush.inc</b> on line <b>576</b><br />
<br />
<b>Warning</b>: fwrite(): supplied argument is not a valid stream resource in <b>/home1/munortap/public_html/drush/includes/drush.inc</b> on line <b>576</b><br />
Drush up:
[~/public_html/misadventureinc]# drush up
X-Powered-By: PHP/5.2.17
Content-type: text/html
<br />
<b>Notice</b>: Use of undefined constant STDERR - assumed 'STDERR' in <b>/home1/munortap/public_html/drush/includes/drush.inc</b> on line <b>1668</b><br />
<br />
<b>Warning</b>: fwrite(): supplied argument is not a valid stream resource in <b>/home1/munortap/public_html/drush/includes/output.inc</b> on line <b>34</b><br />
<br />
<b>Notice</b>: Use of undefined constant STDERR - assumed 'STDERR' in <b>/home1/munortap/public_html/drush/includes/drush.inc</b> on line <b>1668</b><br />
<br />
<b>Warning</b>: fwrite(): supplied argument is not a valid stream resource in <b>/home1/munortap/public_html/drush/includes/output.inc</b> on line <b>34</b><br />
<br />
<b>Notice</b>: Use of undefined constant STDERR - assumed 'STDERR' in <b>/home1/munortap/public_html/drush/includes/drush.inc</b> on line <b>1668</b><br />
<br />
<b>Warning</b>: fwrite(): supplied argument is not a valid stream resource in <b>/home1/munortap/public_html/drush/includes/output.inc</b> on line <b>34</b><br />
<br />
<b>Notice</b>: Use of undefined constant STDERR - assumed 'STDERR' in <b>/home1/munortap/public_html/drush/includes/drush.inc</b> on line <b>1668</b><br />
<br />
<b>Warning</b>: fwrite(): supplied argument is not a valid stream resource in <b>/home1/munortap/public_html/drush/includes/output.inc</b> on line <b>34</b><br />
drush up
should not returnX-Powered-By
orContent-type
those are Apache headers.drush up
you get all that garbage, but nothing else happens?