Validate

Validate .env file(s) against .env.example.

Use .env.example to declare required environment variables and validate .env file(s) before running your app.

# .env.example
DATABASE_URL=
API_KEY=
SENTRY_DSN= # optional

$ dotenvx validate
[VALIDATION_FAILED] missing required (DATABASE_URL, API_KEY). fix: [https://github.com/dotenvx/dotenvx/issues/907]

dotenvx validate does not run a command. It loads and decrypts the selected env files, checks them against .env.example, and exits with code 1 when validation fails. On success, it prints ▣ validated and exits with code 0.

$ dotenvx validate -f .env.production -fk .env.keys

Any inline comment containing the word optional marks that key as optional.