linux command to start postgres when you have permission error: sudo -u postgres [COMMAND]..

Starting service sudo -u postgres service postgresql start

startup cli sudo -u postgres psql "dbname" --> \c "dbname"

Default postgresql port = 5432

dependencies: org.slf4j/slf4j-log4j12 v1.4.2 postgresql v42.2.2.jre7 hibernate-entitymanager v3.4.0.GA