sh tiny
DEST=l_samenv@samenv:boxes/images
IMGDAT=apumaster_$(date +'%Y-%m-%d')
read -p "image name to write to $DEST [$IMGDAT]: " IMG
if [ -z "$IMG" ]; then
   IMG=$IMGDAT
fi
echo "copy image to $DEST/$IMG ..."
dd if=/dev/sda bs=512k | lz4 | ssh l_samenv@samenv "dd of=$DEST/$IMG bs=512k"