title: How to Start Dropbox After Installing It with Homebrew Cask?
body: <p>I just started using Homebrew and Cask today to install Unix and OS X applications on my Mac but I don't understand something about Cask.  When I run this command,</p>
  
  <pre><code>brew cask install dropbox
  </code></pre>
  
  <p>I can see that it installs it in /opt/homebrew-cask/Caskroom/dropbox/latest/Dropbox.app and I can see that it has created a symlink ~/Applications/Dropbox.app that points to it, but when I look in Finder at my Applications folder, I don't see it there as I would if I had installed Dropbox from a .dmg file.  Also, I don't know how to start Dropbox from this symlink.  How do I get Cask to install OS X apps so that I can start them from either the Application folder or via the command line in a terminal session?</p>