#!/bin/bash
pwd=`pwd`
find ${pwd} -type f -name *.rar | 
while read "file"
do
    directory=`dirname ${file}`
    filename=`basename ${file}`
    let number=${#filename}-2
    cd ${directory}
    unrar x ${filename}
    if [ $? -eq 0 ]; then
            rm  ${filename:0:${number}}*
    else
            echo ERROR: unrar failed on $file
    fi
    cd ${pwd}
done