Install .NET Core on Ubuntu

Introduction

.NET Core is a cross-platform, open-source framework for developing modern applications. It is lightweight, modular, and high-performance, making it a great choice for building a wide variety of applications, including web applications, mobile apps, games, and cloud services.

If you are using Ubuntu, you can install .NET Core using the following steps:

Prerequisites

Before you begin, you will need to make sure that your Ubuntu system is up to date. You can do this by running the following command:

Bash

sudo apt update && sudo apt upgrade

Installing .NET Core

There are two ways to install .NET Core on Ubuntu:

Method 1: Using the Microsoft Package Repository

The Microsoft package repository is the easiest way to install .NET Core on Ubuntu. To use this method, you will need to add the Microsoft package repository to your system. You can do this by running the following commands:

Bash

sudo wget https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/microsoft.asc
sudo add-apt-repository https://packages.microsoft.com/ubuntu/$(lsb_release -cs)
sudo apt update

Once you have added the Microsoft package repository, you can install .NET Core by running the following command:

Bash

sudo apt install dotnet-sdk-6.0

This will install the .NET 6.0 SDK. If you want to install a different version of .NET Core, you can replace 6.0 with the desired version number.

Method 2: Using Snap

Snap is a package manager that allows you to install applications without having to compile them from source. To install .NET Core using Snap, you will need to install the Snap package manager first. You can do this by running the following command:

Bash

sudo apt install snapd

Once you have installed Snap, you can install .NET Core by running the following command:

Bash

sudo snap install dotnet-sdk --classic --channel=6.0

This will install the .NET 6.0 SDK. If you want to install a different version of .NET Core, you can replace 6.0 with the desired version number.

Verifying the Installation

Once you have installed .NET Core, you can verify the installation by running the following command:

Bash

dotnet --version

This should print the version of .NET Core that you have installed.

Using .NET Core

Now that you have installed .NET Core, you can start developing applications using it. You can find more information about how to use .NET Core on the official .NET Core website.

Example

The following is an example of how to create a simple “Hello, World!” application using .NET Core:

C#

using System;

public class HelloWorld
{
    public static void Main(string[] args)
    {
        Console.WriteLine("Hello, World!");
    }
}

To save this code as a HelloWorld.cs file, you can use the following command:

Bash

echo 'using System;
public class HelloWorld
{
    public static void Main(string[] args)
    {
        Console.WriteLine("Hello, World!");
    }
}
' > HelloWorld.cs

Once you have saved the code, you can compile it using the following command:

Bash

dotnet build HelloWorld.cs

This will create a HelloWorld.exe file. You can run the application by running the following command:

Bash

dotnet run

This will print “Hello, World!” to the console.

Conclusion

.NET Core is a powerful and versatile framework that can be used to develop a wide variety of applications. If you are using Ubuntu, you can easily install .NET Core using the steps above. Once you have installed .NET Core, you can start developing applications using it today.