I did Move to Trash > Empty Trash. However, .fileNames and .directoryNames stay in the filesystemthose .files/.directories which have exactly the same name as my deleted files/directoriesFor instance, select to host the folder where you did removals. All your removals will be shared too. This is not what I want because it can lead to severe mistakes.I would like to do the thing as a one-liner, probably by gsettings. This would help the maintenance and future installations. Malyy's answer is about the GUI approach by enabling Include a delete command bypasses Trash, but I really need a one-liner. Systems: Ubuntu 16.04  
How to Make MoveToTrash mean Delete Permanently by One-liner?
ubuntu;deleted files
From the CLI, as requested:gsettings set org.gnome.nautilus.preferences enable-delete trueExplanation requested from OP:Nautilus is a part of GNOME, so it stores preferences under org.gnome.nautilus.preferences. From there, just had to look at the list.Also, you can get all Nautilus-related settings by gsettings list-recursively | grep nautilus.