fslint: FSlint (A utility to find File System lint)
fslint:
fslint: FSlint is a toolkit to find redundant/questionable disk usage.
fslint: It includes a GTK+ GUI fslint-gui as well as a command line 
fslint: interface fslint, which are wrappers for commands accessible
fslint: from the /usr/share/fslint/fslint directory.