How do I delete unneccesary worlds from the /worlds command?

[WhisperRockGamer]

A while back, I needed help uploading a world to a server, and I used quite a lot of different names while testing uploads. I got it all figured out later and know that the correct uploaded world is ul_TheCity. There are a lot of other world names in the list when I do /worlds, and I'm wondering which ones I can delete without risking losing my data on this server or my other. I attached an image as well. Any help would be greatly appreciated!

[_Tarna_]

To delete a world, do /del world <world> 

[WhisperRockGamer]

4 minutes ago, _Tarna_ said:

To delete a world, do /del world <world> 

I have another server world with the world name "world", should I save that world? In other words, if I enter /worlds on my other server, will the results for the worlds be the same?

Edited August 21, 2020 by WhisperRockGamer
made my question clearer

[_Tarna_]

3 minutes ago, WhisperRockGamer said:

I have another server world with the world name "world", should I save that world? In other words, if I enter /worlds on my other server, will the results for the worlds be the same?

What do you mean? Did you download the world named "world" on your other server and uploaded it to this server? It should be the same if you did so.

[WhisperRockGamer]

Just now, _Tarna_ said:

What do you mean? Did you download the world named "world" on your other server and uploaded it to this server? It should be the same if you did so.

The world name for my second server is literally titled "world". When I enter the command /worlds on my first server, I see the name "world" in the list. Is that referencing to the world for my second server?

[_Tarna_]

56 minutes ago, WhisperRockGamer said:

The world name for my second server is literally titled "world". When I enter the command /worlds on my first server, I see the name "world" in the list. Is that referencing to the world for my second server?

If you have a world named "world"  one one server, why would it be referencing the world on the second server. The worlds are separate from each server and have nothing to do with each other.