Command line disk usage tool.

Features
    -bargraph with disk and inode usage.
        -background: inodes, foreground: disks.
    -grouping of filesystems.
    -separate coloring of /, /boot and /mnt for easy spotting.
    -log2ram filesystem displayed last for easy spotting of log drive usage
     on Raspberry Pi.
    -display of detailed inode usage (similar to df -i).