PostgreSQL14 Ubuntu20.04

https://www.postgresql.org/download/linux/ubuntu/

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

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

sudo apt-get update

sudo apt-get -y install postgresql

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sudo -i u postgresql   /  sudo su - postgres 

psql

select version();

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err

-bash: u: コマンドが見つかりません

sudo su - postgres 

psql

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alter role postgres with password 'NewPasswd123';

sudo service postgresql restart

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pg_dump database名 > backup_file名

psql dbname < infile

pg_restore -U "ユーザー名" -C -d "DB名" db.dump

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sudo gedit /etc/postgresql/14/main/postgresql.conf