SHELL

sudo apt-get -y install postgresql

# updates the mirrors
sudo apt update

# installs postgresql and some additional utilities and functionalities
sudo apt install postgresql postgresql-contrib

# starts installed postgresql service
sudo systemctl start postgresql.service

# installation creates default user postgres with below you can connect with postgres user
sudo -i -u postgres

# type psql to access postgresql prompt
psql

# postgresql installation completed

apt install postgres client

sudo apt install postgresql 

install postgres ubuntu

# from the official postgresql site: https://www.postgresql.org/download/linux/ubuntu/
# this will install the latest version of the postgresql.

# Create the file repository configuration:
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'

# Import the repository signing key:
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -

# Update the package lists:
sudo apt-get update

# Install the latest version of PostgreSQL.
# If you want a specific version, use 'postgresql-12' or similar instead of 'postgresql':
sudo apt-get -y install postgresql