WhatSize in shell

whatsize.sh

#!/usr/bin/env bash

# Thanks to bolk http://bolknote.ru/2011/09/14/~3407#07
function PrintBar {
	
	if [[ $TERM =~ 256 || $TERM_PROGRAM = "iTerm.app" ]]; then
		local colors=("38;5;34" "38;5;220" "38;5;160")
	else
		local colors=(32 33 31)
	fi

    local c=${colors[0]}

    [ $1 -ge 13 ] && c=${colors[1]}
    [ $1 -ge 20 ] && c=${colors[2]}

    local bar=$(cat)
    local prg=$(printf "%0$1s" | tr 0 ${bar:2:1})
    local rep="\033[${c}m$prg\033[30m"

    echo -e ${bar/$prg/$rep}
}

function PrintItems {
	
	du -s .[!.]* * | sort -rn | head -n $listlength \
	 | sed s/^[0-9]*// | while read item
	do 
	    if [ "$item" != "" ]; then
                local cur=$(du -s "$item" | awk '{ print $1 }' )
		[[ $max = "" ]] && max=$cur
		let percent="($cur*40/$max)"
	        folder=`du -hs "$item"`
		echo -e "│ ████████████████████████████████████████ \033[0m│ $folder" \
		 | PrintBar $percent	
	    fi
	done	
}

if [ "$1" = "" ]; then
    listlength=10
else
    listlength=$1
fi

echo    ┌──────────────────────────────────────────┐
PrintItems
echo    └──────────────────────────────────────────┘
echo -e "\033[0m"