Did you know that using WinSCP, you can run a search on your FTP to find all the documents containing a given string? It's native in WinSCP; nothing more to install but...
However, it's insanely slow; let's see how we can do it better and almost instantaneous.
Have you ever deleted a website from your FTP client? It's easy, just select the folder containing the website and press the delete key.
Easy, simple and ... so slow. It takes ages to suppress files / folders. Several dozen minutes! Ouch.
If you've a SSH connection to your web server and if you're comfortable with it; you can rm -rf the folder and it'll be done in seconds.
But what if you don't have SSH or fear to make errors?
There is an alternative, the erase.php script.