A Script for compressing folders with lz4

clz.sh

#!/usr/bin/env bash

# Usage: bash clz.sh foldername filenametocompress
target=$2
target_source=$1

tar \
    --exclude="${target_source}"${0} \
    --exclude="${target_source}${target}.tar.lz" \
    --exclude-caches-all \
    -cpf \
     - "${target_source}" -P \
    | pv -s $(($(du -skx "${target_source}" | awk '{print $1}') * 1024)) |\
     lz4 -9 > "${target}".tar.lz # use high compression