Como Instalar postgresql-client-11 en Ubuntu 18.04

Como Instalar postgresql-client-11 en Ubuntu 18.04

sudo apt-get install curl ca-certificates gnupg
curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
sudo apt-get update
sudo apt install postgresql-client-11
pg_basebackup -V                                            

Referencia: 
https://dba.stackexchange.com/questions/259784/how-to-install-postgresql-client-11-on-ubuntu-18-04