Solved Is there a plugin that does this?

I recently added a creative world to my server and am wondering if there is a plugin that disables the use of commands like /sell in certain worlds like the creative world. I imagine there must be a plugin that does this do to the large amount of servers that use multiverse. If you know of a plugin that does this please post it below it would be much appreciated.

 

Permissions does this.

 

Could you be more specific? I use PermissionsEX and am not aware of a permission node that disallows commands per world. Could you give an example on one of these permisson nodes?

 

Use PermissionsEX or something like that and add a negative permission node for that command in that world.

 

Thanks I figured out.

 

Sorry for being such a noob but how do you make a negative permission and how do you make a different world permission?