How to make Wipe World and Wipe BP?

hello, I have to acquire a server. I installed the useful plugins, and after a few tests to see if everything works (which is the case), I would learn to do the wipes.

When I’m in the FTP server, I have this:

I searched the internet and several methods diverge … and all have nothing similar to what I …

it’s been three days … but I’m looking for anything … I hope you can help me.

This is the topic for server owners

oups sorry :]