Emacs dired mode is an easy to use text-based file manager. By default, files are displayed in alphabetical order. Is there a way to sort the files by file size descending order?
You may customize the sort order by providing an argument to the dired-sort-toggle-or-edit which is bound to the s keystroke.
So to answer your question, just type Control+u s and pass the -lS switches.
You may pass -lhS for human readable results.