Disabling w3 total cache:
edit the wp-config.php file
define (WP_CACHE’, true);
from true to false (i.e. define (‘WP_CACHE’,false);
Command line method of clearing w3 total cache:
delete files form the wp-contentw3tc/pgcache/ directory
http://www.frandimore.com/blog-setup/how-to-delete-w3-total-cache-properly/
