foldersize.sh

#/bin/bash
set -e
set -u
#set -x

diskusage () { # (directory)
  pushd "$@" > /dev/null
  echo "## $(pwd) ##"
  du -xk --max-depth=1 | sort -nr | awk '
    BEGIN {
      split("KB,MB,GB,TB", Units, ",");
    }
    {
      u = 1;
      while ($1 >= 1024) {
        $1 = $1 / 1024;
        u += 1
      }
      $1 = sprintf("%.1f %s", $1, Units[u]);
      print $0;
    }
    '
  popd > /dev/null
}

if [ $# -gt 0 ]
  then
    counter=0
    for i in "$@" ; do
      let counter++ || true
      if [ -d "$i" ] ; then
        diskusage "$i"
      else
        echo "Path $i does not exist!"
      fi
      [ $counter -lt $# ] && echo || true
    done
  else
  diskusage .
fi