Force empty your trash from the command line
Who doesn’t love the command line? The following command will show you how to force empty your trash using the command line in Ubuntu or Debian:
sudo rm -fr /home/USERNAME/.Trash
Replace the “USERNAME” section with your own username. You may need to refresh your GNOME or KDE session to see the results. You can quickly refresh your session by typing CONTROL+ALT+BACKSPACE. This command line function is particularly useful if you’ve got a stubborn file or script that will not get out of your trash. Thanks, Arsgeek.