Linux – Can ext3 partition be cloned with NortonGhost 11.5

I would mount the NTFS read-only partition and, assuming there's enough space inside the partition being used for Ubuntu, copy all of the data that you're interested in keeping out of the NTFS partition into the Ubuntu partition.

Once that's done, I'd any one of the various LiveCD distributions such as the GParted LiveCD to resize the Ubuntu partition (which I'm assuming is probably formatted with the ext3 filesystem).

As of GNU coreutils 7.5 released in August 2009, sort allows a -h parameter, which allows numeric suffixes of the kind produced by du -h:

du -hs * | sort -h

If you are using a sort that does not support -h, you can install GNU Coreutils. E.g. on an older Mac OS X:

brew install coreutils
du -hs * | gsort -h

From sort manual:

-h, --human-numeric-sort compare human readable numbers (e.g., 2K 1G)