Install pigz (Parallel Implementation of GZip)

pigz which stands for Parallel Implementation of GZip, is a fully functional replacement for gzip that exploits multiple processors and multiple cores to the hilt when compressing data.

For Ubuntu 16.04 or early

apt update && apt install zlib1g-dev
git clone
cd pigz
mv pigz unpigz /usr/bin
cd ..
rm -r pigz

For Ubuntu 18.04 or later

sudo apt install pigz