#!/usr/bin/env bash

read -d '' usage <<EOUSAGE
This script calculates the amount of space (in kibibytes) taken by the files
referenced in a newline-delimited listing.

USAGE:  $0 FILE_LIST
EOUSAGE

. "$(dirname $0)/util/logging.bash"

[ -z "$1" ] && dedcat "$usage"

kib_terms=$(cat "$1" | xargs du | awk '{print $1}' | tr $'\n' '+' | sed 's/+$//')

perl -e "print $kib_terms"' . "\n";'