I dont know what Krusader is, but many GUIs send things to the trash vs totally deleting them. In FC5, I just tried something: On the desktop, I used the delete key and the file is gone (not in trash). If I right-click on the file, then there is an option to "send to trash"---but it does not seem to work!!! (Now I need to check my system.....
If the stuff is really important, then I think it can be recovered---don't write anything lese to the disk until you figure out your next moves.
In the terminal (CLI), there is no trash.