Environment Variable - CI/CD Glossary Definition
An environment variable is a named value held in a process environment and inherited by child processes, used to pass configuration like PATH, HOME, or CI without hardcoding it.
In CI
Set variables with the env: key at workflow, job, or step level. Most CI systems set CI=true automatically so tools can detect they are running in a pipeline. Write to $GITHUB_ENV to export a variable to later steps.
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