The trash-cli package adhers to the FreeDesktop.org
standard for trashcan functionality.

Used by MATE and trash-put for home partition:
  ~/.local/share/Trash/
MATE's Caja file manager  identifies this as "Rubbish".

Used by Caja and trash-put for non-home partitions,
where $topdir is <partition-root>:
  $topdir/.Trash-$uid/
This directory will be created if it does not exist.
When trash-put is used by root, this will be .Trash-0

or, theorically, the first choice if /.Trash/ exists:
  $topdir/.Trash/$uid/
It is necessary for /.Trash/ to be created in advance
by a supervisor, with write access for users,
and the sticky bit - not working?
The $uid directory will be created dynamically.

trash-cli package (apt, pacman & xbps):
  trash-put <file|directory>
  trash-list
  trash-restore	# this command is interactive
  trash-empty