Home/ Questions/Q 15385
Next
In Process

askthedev.com Latest Questions

Asked: 2024-09-27T06:12:32+05:30 In: ,

how to start postgresql in linux

I’ve recently installed PostgreSQL on my Linux machine, but I’m having trouble figuring out how to start the service. I’ve checked the documentation, but there are different instructions depending on the distribution I’m using. I’m running Ubuntu, and while I thought it would be as simple as typing a command in the terminal, I’ve run into some roadblocks.

Initially, I tried using the command `postgresql start`, but the terminal returned an error saying that the command wasn’t found. Next, I attempted `systemctl start postgresql`, since I’ve read that it’s the standard way to manage services on most modern Linux distributions. However, I still received an error indicating that the PostgreSQL service wasn’t found. I was unsure whether it was improperly installed or if I needed to enable the service first.

Additionally, I want to ensure that PostgreSQL starts automatically each time I boot up my machine. I would greatly appreciate any step-by-step guidance on getting PostgreSQL up and running, including any commands I may have overlooked or configuration files that I might need to adjust. Thank you for your help in advance!

PostgreSQL
Share

    Leave an answer

    You must login to add an answer.

    Need An Account,

    2 Answers

    1. Starting PostgreSQL on Linux for Beginners!

      So, you want to start PostgreSQL on your Linux machine? No worries, it’s pretty simple! Just follow these easy steps:

      1. Open Your Terminal

      First, you need to open the terminal. You can usually find it in your applications, or you can press Ctrl + Alt + T to open it quickly.

      2. Check if PostgreSQL is Installed

      Type this command and hit Enter:

      psql --version

      If you see something like psql (PostgreSQL) 14.1, that means you have it installed. If not, you might need to install it. Look up how to install it for your particular Linux distro!

      3. Start the PostgreSQL Service

      To start PostgreSQL, use this command:

      sudo systemctl start postgresql

      You might need to enter your password because of the sudo part.

      4. Check if PostgreSQL is Running

      Run this command to check if it’s running:

      sudo systemctl status postgresql

      If it says active (running), then you’re all good! 🎉

      5. Connect to Your Database

      Now, connect to the database by typing:

      sudo -u postgres psql

      This will log you in as the postgres user. You can start typing SQL commands!

      6. That’s It!

      Congrats! 🎊 You’ve started PostgreSQL on your Linux machine! If you ever want to stop the PostgreSQL service, you can run:

      sudo systemctl stop postgresql

      Happy coding!


    2. To start PostgreSQL on a Linux system, you’ll first want to ensure that the PostgreSQL service is installed and available. You can typically use systemctl to manage the PostgreSQL service. Start by opening your terminal and executing the following command to start the PostgreSQL service: `sudo systemctl start postgresql`. In many distributions, the service will automatically start upon system boot; however, if you’re interested in the current status of the PostgreSQL service, you can check it with `sudo systemctl status postgresql`. This will confirm whether the service is active and running smoothly.

      Once PostgreSQL is up and running, you can access the PostgreSQL command line interface using the `psql` tool. By default, you can switch to the PostgreSQL user (usually ‘postgres’) with the command `sudo -i -u postgres` and then launch the PostgreSQL prompt by simply typing `psql`. If you prefer connecting directly to a specific database, you can use `psql -d your_database_name`. Make sure you have the necessary permissions and roles set up in your PostgreSQL instance to avoid any access conflicts. For more advanced configurations and options, you can edit the `postgresql.conf` file located in your PostgreSQL data directory, where you can modify settings such as connections and authentication methods.

    Related Questions