From: Thomas Luedeke <lists@...>
Date: 2013-06-05T03:30:11+09:00
Subject: how to implement a UNIX 'export' in Ruby

I've been googling and getting nowhere on this, and I find it an
extremely confusing topic - the use of environment variables in Ruby,
compared to UNIX.

I've converted some obsolescent UNIX scripts (used to perform
verification and validation of computer codes) into Ruby.  I'm now
running into the problem that I need to set an environment variable on
the g95 compiler to get the test cases to run correctly.

So in the UNIX script, they use something like "export
G95_MINUS_ZERO=true".

How in the world do I implement something like this in Ruby?  Is it as
simple as:

ENV['G95_MINUS_ZERO'] = "true"

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