---
name: terragrunt-prefix-env-vars
status: active
---

Throw an error when using the `TERRAGRUNT_` prefix for environment variables.

### `terragrunt-prefix-env-vars` - Reason

This prefix has been renamed to `TG_` to shorten the prefix, due to the work in RFC [#3445](https://github.com/gruntwork-io/terragrunt/issues/3445).

### `terragrunt-prefix-env-vars` - Example

The `TERRAGRUNT_LOG_LEVEL` env var is deprecated and will be removed in a future version. Use `TG_LOG_LEVEL=info` instead.
