postgresql - how to install under ubuntu (debian)

uBuntu Community Wiki - PostgreSQL

How To Install and Use PostgreSQL on Ubuntu 14.04 @ Digital Ocean

install via apt-get

$ sudo apt-get update
$ sudo apt-get install postgresql postgresql-contrib

login as linux user postgres (that was auto-created during installation)

$ sudo -i -u postgres 

launch interactive postgresql console

$ psql

quit interactive console

$ \q

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