Executing Groovy code from the command line

Groovy, by definition, is a language with scripting features. Many developers approach Groovy by writing short scripts to automate repetitive tasks. The language provides a set of command-line tools that help you create scripts that are usable within your favorite shell.

In this recipe, we will cover the execution of a simple script with the help of the groovy command, which is made available to you after a successful Groovy installation (see the Installing Groovy on Windows recipe and Installing Groovy on Linux and OS X recipe).

How to do it...

Let's start with the most abused example in programming books, printing Hello, World!:

  1. The simplest way to execute Groovy code is by using the -e option and starting ...

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