Note that moving files to the trash does not free up space on the file system until the "Trashcan" is emptied. If you are interested in deleting a file irreversibly, see gvfs-rm.
Inspecting and emptying the "Trashcan" is normally supported by graphical file managers such as nautilus, but you can also see the trash with the command gvfs-ls trash://.
The following options are understood:
On success 0 is returned, a non-zero failure code otherwise.
ls(1), gvfs-rm(1), m[blue]Desktop Trash Can specificationm