"It also includes a complete file-search functionality
and auto-detects in real-time any changes made to your home
directory as far as any mounted/unmounted device. Baobab also
provides a full graphical treemap window for each selected folder.
"When analyzing the file system, it ignores the psuedi File
systems like /proc. Hard-links are managed in a different way. The
first hardlink is counted as a normal file, while the subsequent
links to the same inode device are not counted in the total, but
highlighted in the right-hand column of the window (see here)."