Accessing environment variables from Groovy scripts

Question

I have to access an environment variable from my Groovy script. I am not using Jenkins. How do I get the variable?

Answer 1

Use java.lang.System#getenv(java.lang.String)

Example:

def envVar = System.getenv('my_env_var')

Answer 2

A shorter groovy way would be like this:

def envVar = System.env['my_env_var']

Here is an example.