title: Get last dirname/filename in a file path argument in Bash
body: <p>I'm trying to write a post-commit hook for SVN, which is hosted on our development server.  My goal is to try to automatically checkout a copy of the committed project to the directory where it is hosted on the server.  However I need to be able to read only the last directory in the directory string passed to the script in order to checkout to the same sub-directory where our projects are hosted.</p>
  
  <p>For example if I make an SVN commit to the project "example", my script gets "/usr/local/svn/repos/example" as its first argument.  I need to get just "example" off the end of the string and then concat it with another string so I can checkout to "/server/root/example" and see the changes live immediately. </p>