dir_usage_info

#!/bin/bash

if [ $# -ne 0 -a -d "$1" ]
then
    cd "$1"
fi

du -akx . 2> /dev/null | while read SIZE FILENAME
do
    STATTYPE=$(stat -c %F "$FILENAME" 2> /dev/null)
    case "$STATTYPE" in
    [Dd]irectory)
        TYPE=d
        ;;
    [Rr]egular?[Ff]ile|regular?empty?file)
        TYPE=f
        ;;
    [Ss]ymbolic?[Ll]ink)
        TYPE=l
        ;;
    Character?Device|character?special?device)
        TYPE=c
        ;;
    Block?Device|block?special?file)
        TYPE=b
        ;;
    [Ss]ocket)
        TYPE=s
        ;;
    Fifo?File|fifo)
        TYPE=p
        ;;
    *)
        TYPE='?'
        echo "unknown type $STATTYPE"
        ;;
    esac