How To Install jruby on Debian 10

Learn how to install jruby on Debian 10 with this tutorial. jruby is 100% pure-Java implementation of Ruby

Introduction

In this tutorial we learn how to install jruby on Debian 10.

What is jruby

jruby is:

JRuby is an implementation of the ruby language using the JVM.

It aims to be a complete, correct and fast implementation of Ruby, at the same time as providing powerful new features such as concurrency without a global interpreter lock, true parallelism and tight integration to the Java language to allow one to use Java classes in Ruby programs and to allow JRuby to be embedded into a Java application.

JRuby can be used as a faster version of Ruby, it can be used to run Ruby on the JVM and access powerful JVM libraries such as highly tuned concurrency primitives, it can also be used to embed Ruby as a scripting language in your Java program, or many other possibilities.

There are three methods to install jruby on Debian 10. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install jruby Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install jruby using apt-get by running the following command:

sudo apt-get -y install jruby

Install jruby Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install jruby using apt by running the following command:

sudo apt -y install jruby

Install jruby Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install jruby using aptitude by running the following command:

sudo aptitude -y install jruby

How To Uninstall jruby on Debian 10

To uninstall only the jruby package we can use the following command:

sudo apt-get remove jruby

Uninstall jruby And Its Dependencies

To uninstall jruby and its dependencies that are no longer needed by Debian 10, we can use the command below:

sudo apt-get -y autoremove jruby

Remove jruby Configurations and Data

To remove jruby configuration and data from Debian 10 we can use the following command:

sudo apt-get -y purge jruby

Remove jruby configuration, data, and all of its dependencies

We can use the following command to remove jruby configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge jruby

Dependencies

jruby have the following dependencies:

References

Summary

In this tutorial we learn how to install jruby package on Debian 10 using different package management tools: apt, apt-get and aptitude.