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How to Connect to a PostgreSQL Database from Linux or Windows

December 12, 2025 - PostgreSQL can support and maintain ... to list available users and databases: ... Use the \c command and the database name to connect to a different database owned by the postgres user:...

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Connecting PostgreSQL using psql and pgAdmin | EDB

However, if it errors out, you can locate the psql utility by searching for the file with the following command on terminal: [root@localhost /]# find / -name psql /usr/edb/as11/bin/psql · On Windows, you can find psql in the Program Files, and you should be able to launch it in a command prompt simply by clicking on it. On a Mac you should be able to locate psql under the Applications > PostgreSQL (version number) > SQL Shell (psql). Now that we have located psql, we need to understand what it requires to connect to the database.

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People also ask

How to connect to Postgres cli?

Using psql with connection parameters like host, port, username, and database to connect.

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How does PostgreSQL Command line Interface Work?

Does Postgres have a CLI?

Yes, PostgreSQL provides a Command Line Interface (CLI) called psql.

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How does PostgreSQL Command line Interface Work?

How to run Postgres from command line?

Once connected, you can run various SQL commands and administrative tasks using the psql interface.

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How does PostgreSQL Command line Interface Work?

postgresql.org › docs › current › tutorial-accessdb.html

PostgreSQL: Documentation: 18: 1.4. Accessing a Database

May 14, 2026 - The last line printed out by psql is the prompt, and it indicates that psql is listening to you and that you can type SQL queries into a work space maintained by psql. Try out these commands: mydb=> SELECT version(); version ------------------------------------------------------------------------------------------ PostgreSQL 18.4 on x86_64-pc-linux-gnu, compiled by gcc (Debian 4.9.2-10) 4.9.2, 64-bit (1 row) mydb=> SELECT current_date; date ------------ 2016-01-07 (1 row) mydb=> SELECT 2 + 2; ?column?

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Connecting to PostgreSQL Database Server

Second, use the psql command to connect to the PostgreSQL server: ... -U postgres: Specify the user that connects to the PostgreSQL server. The -U option means user. Note that you need to use -U in uppercase, not lowercase.

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How to Manage PostgreSQL Databases from the Command Line with psql

October 3, 2025 - So enter psql -d postgres -U postgres to connect to the postgres database as the postgres superuser. ... You will be prompted for a password. Enter the password you chose when you installed PostgreSQL on your computer.

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Connecting to PostgreSQL using the command line - hosting.com

To connect to PostgreSQL from the command line, follow these steps: Log in to your account using SSH. At the command line, type the following command. Replace dbname with the name of the database, and username with the database username:

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How to Connect to Postgres Database From Command Line

December 4, 2023 - $ sudo apt install postgresql-client ... begin, open your terminal and use the psql, a terminal-based front-end to PostgreSQL as follows, where the -d flag is used to specify the database you are connecting to and the -U specifies the username you are connecting as...

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How does PostgreSQL Command line Interface Work?

January 9, 2026 - Now, to get started with psql Connect to database command line you, first have to install PostgreSQL, After installing PostgreSQL, launch psql and enter the following command in the Postgres CLI.

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PostgreSQL - Get Started

Enter the password you chose when you installed the PostgreSQL database, my password is 12345678: The result might look like an error, but if it shows psql (15.2) or any other version, and in the end you see the postgres=# command (and maybe a warning in between), then you have successfully connected to the database!

w3resource.com › PostgreSQL › connect-to-postgresql-database.php

Connect to PostgreSQL Database on Linux, Windows | w3resource

April 1, 2026 - It enables you to type in queries ... database using pgAdmin GUI application. Connect to the database at localhost:5432 using the user name postgres and the password supplied....

stackoverflow.com › questions › 26427522 › how-to-connect-to-postgresql-through-cli

cmd - How to connect to PostgreSQL through CLI? - Stack Overflow

For Unix environnement the command line is

psql -U USERNAME -h localhost dbname

For a Windows environment, you may consider replacing "-" with "/"

-U option able you to choose a user to connect with

-h option able you to connect with the TCPIP protocol, you may consider it useless for Windows

psql -h <hostname> -U <username> -d <dbname>

If all params are correct then it will ask you for db password for username entered earlier.

stackoverflow.com › questions › 50258123 › how-to-run-postgresql-from-command-line-and-know-available-databases-in-windows

How to run postgresql from Command line and know available Databases in Windows - Stack Overflow

To connect the PostgreSQL via Command line you have to install a PostgreSQL provided tool called "psql" if not installed already.

Then use the below command to connect to PostgreSQL database.

psql -h localhost -p 5432 -U postgres

Explanation:

localhost: is the hostname of machine where PostgreSQL is installed.
5432 : is the default PostgreSQL port
postgres : is the username of to connect to DB

Solution for your issue:

FATAL: password authentication failed for user "testuser"

As error message specified, either user not exists on database or the password that you supplied to connect is incorrect. Re-verify your user and password, and try again.

All the best.

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How to Connect to Postgres Database Server — CommandPrompt Inc.

March 2, 2023 - Provide the superuser password and hit the “OK” button to connect to the Postgres Database Server. Open the Query tool and use any command/query to confirm if the connection is established or not.

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Connecting to a remote PostgreSQL database | by Kawere Wagaba | Crane Cloud | Medium

October 7, 2022 - For a local database: psql <dbname> < <infile>. Run these commands at the terminal, not at the psql prompt.

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Connect to PostgreSQL Database using SQL Shell & pgAdmin

First, you need to enter the PostgreSQL server name. if it is on your localhost then press Enter. The default value mentioned in the square bracket e.g. [localhost] is the default server.

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Connecting with psql | docs.elest.io

To ensure you're connected correctly, run this command inside the psql prompt: ... version --------------------------------------------------------------------------------------------------------------------- PostgreSQL 16.8 (Debian 16.8-1.pgdg120+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14) 12.2.0, 64-bit (1 row)

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How to Connect to PostgreSQL Database Clusters | DigitalOcean Documentation

1 week ago - Connection string: Pass the connection string from the Control Panel in quotes to psql. Replace <your-username>, <your-password>, <path-to-ca-certificate>, and <your-cluster-hostname>: psql "postgresql://<your-username>:<your-password>@<you...

postgresql.org › docs › 9.1 › app-psql.html

PostgreSQL: Documentation: 9.1: psql

October 27, 2016 - Establishes a new connection to a PostgreSQL server. The connection parameters to use can be specified either using a positional syntax, or using conninfo connection strings as detailed in Section 31.1. Where the command omits database name, user, host, or port, the new connection can reuse ...

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How to Connect to a PostgreSQL Database: Complete Guide for All Methods

3 weeks ago - Windows: Open Command Prompt, PowerShell, or Windows Terminal. Ensure the PostgreSQL bin directory is added to your system PATH. ... -h host — The server's hostname or IP address (e.g., localhost for local, or a remote IP such as 192.168.1.100). -p port — The port PostgreSQL is listening on (default: 5432). -U username — The PostgreSQL username to authenticate as. -d database — The name of the database you want to connect to.

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How to Use psql: A Comprehensive Guide to PostgreSQL’s Command-Line Client - howtouselinux

January 4, 2026 - Authentication: Uses peer authentication (trusts OS users matching PostgreSQL users) defined in pg_hba.conf. For explicit control, use flags to define connection details: # Basic syntax: psql -U <user> -d <database> -h <host> -p <port> psql -U postgres -d mydb -h localhost -p 5432