This example assumes you are moving files from public_html/test to public_html.

1. Move all of the files and folders from your Joomla folder to the new directory. In our case from public_html/test to public_html
2. Edit your configuration.php file and make the following changes in it:
   
   Change: var $log_path = '/home/user/public_html/test/logs';
   To: var $log_path = '/home/user/public_html/logs';
   
   Change: var $tmp_path = '/home/hristopa/public_html/test/tmp';
   To: var $tmp_path = '/home/hristopa/public_html/tmp';
   
   Change: var $ftp_root = '/public_html/test';
   To: var $ftp_root = '/public_html';
   
   Change: var $live_site = 'http://www.yourdomain.com/test';
   To: var $live_site = 'http://www.yourdomain.com';
   
   
3. Remove the content of your cache folder (public_html/cache in our case)