using-variables-in-env-file-on-the-command-line.md

Using variables in .env file on the command line

If you keep secrets in a .env file (or in any file with the normal KEY=value format), they can be temporarily exported to invoke a command:

$ (export $(cat .env | xargs) && MIX_ENV=prod mix release)

They will not be persisted outside of this command.

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