The trash one is a little outdated and won't necessarily put the trashed file where the user's GUI file manager would put it.
gio trash FILE and kfmclient move FILE trash:/ are the compatible commands under GNOME and KDE respectively. Derivatives generally use one or the other.
Unfortunately, the KDE one is somewhat tricky to do with an alias, what with the parameter being in the middle. I am also unsure as to whether it has a force option. Web results are inconclusive and I'm on a GNOME derivative.