#!/bin/sh
# script to compare current with recent du.log
if [[ -z "$1" ]]; then
    n=1;
else
    n=$1
fi
max=$(ls /var/log/du|wc -l)
if (( $n >= $max-1 )) ; then
    n=$[$max-1]
fi
echo perl ~/cvsprj/xda-devtools/perlutils/dudiff.pl $(ls -r /var/log/du | awk "NR==1 || NR==$n+1")