System commands dont work when running over passenger <p>I have a sinatra app with a page that shows some information about the application. Some of which is generated by running commands on page load. Everything works fine on my MacBook when running in unicorn and everything works fine on the production server when running in unicorn but swap to Apache/Passenger and suddenly the commands start returning nil.</p> <p>For example to get a list of committers I use:</p> <pre><code>comitters = `cd /path/to/app &amp;&amp; git shortlog -s -n` </code></pre> <p>This works perfectly until run in the apache/passenger setup.</p> <p>Is there some option within passenger that disables system commands?</p>