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This question already has an answer here:

I followed an instruction on how to setup Ubuntu 10.04 with PostgresSQL

$ psql

Or this:

lucid@ubuntu:~$ sudo -u postgres psql postgres
[sudo] password for lucid: 
psql: could not connect to server: No such file or directory
    Is the server running locally and accepting
    connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?

Anyone knows a solution?

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marked as duplicate by bodhi.zazen, Radu Rădeanu, Thomas W., Basharat Sialvi, Mitch Jun 15 '13 at 14:51

This question was marked as an exact duplicate of an existing question.

Take a look at postgres documentation at In particular, sections 18.3.1 and 18.3.2 – hmayag Jun 14 '13 at 22:23
up vote 0 down vote accepted

I believe the command should be

sudo -u postgres psql postgres


If that does not work, tell us more about your configuration.

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When I type this command, I get this "/var/run/postgresql/.s.PGSQL.5432"? -- same as the error in my question – xybrek Jun 14 '13 at 21:07
See… – bodhi.zazen Jun 14 '13 at 22:16

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