Release your own FreeBSD. Grab an official FreeBSD ISO image, create a new project and build it. Current sub-projects are : FugFR LiveCD (XFCE LiveCD), Folie (Gnome LiveDVD concept), Klive (KDE LiveDVD concept), Etoile (EtoiléOS LiveCD experimental)
'finddouble' application searches into a directory and all its sub directories.
If it finds several times the same file, a warning message is displayed, but no other action is taken.
It's main use is to help you optimize you disk usage.
This project brings together many sub-projects with the goal of enhancing Linux performance on large systems. Sub-projects include ccNUMA, 64-bit x86, ACPI, etc. support for Linux.