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I have problem with starting PostgreSQL Server on Centos 7. I installed PostgreSQL with this command: yum install postgresql postgresql-contrib. Then I added a user with sudo -i -u postgres command. After that I'm trying to start PostgreSQL Server with psql command and it gives me an error:

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Gholamali Irani
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Viktor Gnativ
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    Possible duplicate of [Psql could not connect to server: No such file or directory, 5432 error?](https://stackoverflow.com/questions/42653690/psql-could-not-connect-to-server-no-such-file-or-directory-5432-error) – gokcand Jan 11 '18 at 15:40
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    `psql` does not start the server - it connects to an already running server. To start Postgres you need `service postgresql-10 start` (or something similar) –  Jan 11 '18 at 16:11

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https://www.postgresql.org/docs/current/static/app-psql.html

psql is a terminal-based front-end to PostgreSQL. It enables you to type in queries interactively, issue them to PostgreSQL, and see the query results.

https://www.postgresql.org/docs/current/static/app-pg-ctl.html

pg_ctl - initialize, start, stop, or control a PostgreSQL server

(formatting mine)

Vao Tsun
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