Most often listing files in Linux/Unix is easy - just use the simple "ls" command and your done, but...
when you have to list files ordered by their size, it is a bit tricky. On some installations of Unix you have the -S option to "ls" that can be used to get a listing in Size order. When this option is not available just try the following:
du -ksl * | sort +4 -nr
If you just want the files and not the directories, try: