Groovy on Debian 10

Groovy is an object-oriented programming language integrated with Java platform. It can be used as a scripting language or a programming language. In this tutorial, we will install Groovy on Debian 10 and explore some of its features.

Prerequisites

Before we begin, make sure you have the following:

• A server running Debian 10
• A sudo user

Step 1 — Installing Java

Groovy requires Java to run. We will be installing OpenJDK 11, which is the latest LTS version at the time of writing. To install it, run the following command:

sudo apt update
sudo apt install openjdk-11-jdk

After the installation is complete, check the version of Java using the following command:

java -version

Step 2 — Installing Groovy

Now that we have Java installed, we can proceed with the installation of Groovy. To do this, we will be using SDKMAN, which is a tool to manage multiple versions of software on a single machine.

First, run the following command to install SDKMAN:

curl -s "https://get.sdkman.io" | bash

After the installation is complete, run the following command to activate SDKMAN:

source "$HOME/.sdkman/bin/sdkman-init.sh"

Now, run the following command to install the latest version of Groovy:

sdk install groovy

After the installation is complete, run the following command to check the version of Groovy:

groovy --version

You should see something like the following:

Groovy Version: 3.0.4 JVM: 11.0.12 Vendor: Debian OS: Linux

Step 3 — Running Groovy Scripts

Now that Groovy is installed, let's create a simple script to test it.

Create a file called hello.groovy with the following contents:

println "Hello, World!"

Save the file and run it using the following command:

groovy hello.groovy

You should see the following output:

Hello, World!

Congratulations! You have successfully installed and run Groovy on Debian 10.

Conclusion

Groovy is a powerful programming language that can be used in conjunction with Java. It is easy to learn and has a lot of features that make it a great choice for scripting and programming. By following this tutorial, you should now have Groovy installed on your Debian 10 server and be able to run Groovy scripts.