"Trash" equivalent for 12.04
Solution 1:
Try installing the trash-cli utility:
sudo apt-get install trash-cli
Usage:
trash-put trash files and directories.
trash-empty empty the trashcan(s).
trash-list list trashed files.
trash-restore restore a trashed file.
trash-rm remove individual files from the trashcan.</pre>
For more information, check the GitHub documentation