find . -type f -name "*.gz" | \
sort | while read gzipfile; do \
uncompressedfile=`echo $gzipfile | sed 's/\.gz//'`; \
gunzip -v $gzipfile && \
bzip2 -v $uncompressedfile; \
done
sort | while read gzipfile; do \
uncompressedfile=`echo $gzipfile | sed 's/\.gz//'`; \
gunzip -v $gzipfile && \
bzip2 -v $uncompressedfile; \
done