OK, I may have done something stupid, but I need help to get out of the situation I backed up my users folder, so I could do some cleaning up. I quickly realised that this was the wrong way, so I deleted the folder I had created in the copy process. Now I have a folder sitting in my Trash, which I cannot get rid of. It contains the folder "Mobile Documents" which is in the users Library folder, and it has about 50 folders in it. No files, just empty folders, some with more empty folders. When I try to empty my Trash, I get the message that the files are in use. I have tried a bunch of things; 1) rebooted and tried again, 2) in terminal I used "cd ~/.Trash", and then "rmdir -r FOLDER", but I get the message that it is an illegal option, 3) in terminal I used "lsof" and then dropped the folder in there, but I do not get a list of what app has got the files open, 4) in recovery mode, I ran First Aid. And nothing has worked, I still cannot get rid of that folder or its contents. What to do?