Running drush up to several sites folders at once
First off, look to the trivial solution:

#!/bin/bash
drush @site1 up -y --no-backup
drush @site2 up -y --no-backup


You don't need to install Ansible to start automating; simple bash scripts can be used to combine repetitive tasks very easily.  If you are on Windows, you can install Git for Windows, which includes a Bash shell, or, if you really don't want to install anything at all, use a .bat file.

There is also a Drush solution:  Drush can run the same command on multiple sites if you give it a list of aliases:

drush @site1,@site2 up -y --no-backup


If you have a lot of sites, you can make a site alias that is a list of site aliases:

&lt;?php
$aliases['mine'] = array(
  'site-list' =&gt; array('@site1', '@site2')
);


Then:

drush @mine up -y --no-backup