Install MongoDB in Ubuntu 20.04

• Get pulbic key

sudo wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -

• Add list

echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list

• Update

sudo apt update

• Install MongoDB

sudo apt install mongodb-org

• Start mongod and mongo

terminal1 > mongod
terminal2 > mongo