Unnamed

failed=1

for I in `find "$1" -type f -iname '*.r01' -or -iname  '*part01.rar' -and -iname '*.rar' -not -iregex '.*part[0-9][2-9].rar' | grep -v -e sub -e sample`
do
echo "Processing file $I ..."
if rar x $I
then
    echo "Successfully extracted $I"
else
    failed=0
    echo "Failed to extract $I"
fi
done

if [ $failed ]
then
    echo "One or more files failed to extract. No further action will be taken."
else
    echo "Extraction completed successfully. Deleting archives."
    for I in `find "$1" -type f -iname '*.r??' |grep -v -e sub -e sample`
    do
       rm $I
       echo "Deleted $I"
    done
fi
echo "Done."