wenbert:/Applications/MAMP/bin/php5/lib/php wenbert$ pwd
/Applications/MAMP/bin/php5/lib/php
wenbert:/Applications/MAMP/bin/php5/lib/php wenbert$ ls
Archive         PEAR            System.php      doc             pearcmd.php
Console         PEAR.php        build           extensions      peclcmd.php
OS              Structures      data            library         test
wenbert:/Applications/MAMP/bin/php5/lib/php wenbert$ cd library/
wenbert:/Applications/MAMP/bin/php5/lib/php/library wenbert$ ls
Zend
wenbert:/Applications/MAMP/bin/php5/lib/php/library wenbert$