How do I access environment variables in Ruby?
An example of an AI chatbot conversation about accessing environment variables in Ruby.
How do I access environment variables in Ruby?
You can access environment variables in Ruby using the ENV hash. For example, ENV['VARIABLE_NAME'] will give you the value of the environment variable.
Can you show me an example of how to set an environment variable?
Sure! You can set an environment variable in your terminal like this: export VARIABLE_NAME='value'. Then, in Ruby, you can access it using ENV['VARIABLE_NAME'].
What if the environment variable doesn't exist?
If the environment variable doesn't exist, ENV['VARIABLE_NAME'] will return nil. You can check for its existence using ENV.key?('VARIABLE_NAME').
Is there a way to set environment variables within a Ruby script?
Yes, you can set environment variables within a Ruby script using ENV['VARIABLE_NAME'] = 'value'. This will set the variable for the duration of the script.
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