Compute a sorted disk usage analysis using du, without including filesystem mountpoints
case $(uname -s) in Linux) duso() { sudo sh -e <<"EOF" mnt="$(stat -c %m .)" LANG=C ls -1a | grep -Gv '^\.$\|^\.\.$' | while read dent do [ "$(stat -c %m "${dent}")" = "${mnt}" ] && printf "%s\0" "${dent}" done | xargs -0 du -sx | sort -bn EOF } ;; FreeBSD) duso() { sudo sh -e <<"EOF" mnt="$(stat -f %d .)" LANG=C ls -1a | grep -Gv '^\.$\|^\.\.$' | while read dent do [ "$(stat -f %d "${dent}")" = "${mnt}" ] && printf "%s\0" "${dent}" done | xargs -0 du -sx | sort -bn EOF } ;; *) echo "Unknown platform $(uname -s)" ;; esac