Gerrit installation - Ubuntu

make a script bash.sh containing this

#!/bin/sh -e


# Access to http://<hostname>:8080/.
cat <<EOF | sudo tee /etc/apt/sources.list.d/gerritforge.list
deb [trusted=yes] http://deb.gerritforge.com/ gerrit contrib
EOF
sudo apt update -y
sudo apt install -y openjdk-8-jdk haveged
sudo apt install -y gerrit
sudo systemctl enable gerrit
sudo reboot

save that
Then

source bash.sh

completed

now in browser

http://localhost:8080/