title: Composer permission denied and sudo doesn't work
body: <p>I'm on a CentOS server. When I call <code>composer install</code> I get the following error:</p>
  
  <p><code>bash: /usr/local/bin/composer: Permission denied</code></p>
  
  <p><code>sudo composer install</code> gives me this:</p>
  
  <p><code>sudo: composer: command not found</code></p>
  
  <p>Really baffled here. Anyone have an idea what might be the problem?</p>
  
  <p>Thanks!</p>
  
  <p>Edit: I've done some more research, and it seems that I'm not even downloading Composer in my directory. <code>curl -sS https://getcomposer.org/installer | php</code> doesn't actually do anything!</p>