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Removes PORT from .env concatenation example #51063

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merged 3 commits into from
Jun 10, 2023
Merged

Removes PORT from .env concatenation example #51063

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c005e79
Removes `PORT` from `.env` concatenation example
manovotny Jun 9, 2023
4029ad2
Simplifies example
manovotny Jun 9, 2023
7f33af4
Merge branch 'canary' into remove-port-from-env-example
kodiakhq[bot] Jun 10, 2023
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7 changes: 3 additions & 4 deletions ...02-app/01-building-your-application/06-configuring/03-environment-variables.mdx
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Expand Up @@ -57,12 +57,11 @@ This loads `process.env.DB_HOST`, `process.env.DB_USER`, and `process.env.DB_PAS
Next.js will automatically expand variables that use `$` to reference other variables e.g. `$VARIABLE` inside of your `.env*` files. This allows you to reference other secrets. For example:

```txt filename=".env"
HOSTNAME=localhost
PORT=8080
HOST=http://$HOSTNAME:$PORT
TWITTER_USER=vercel
TWITTER_URL=https://twitter.com/$TWITTER_USER
Comment on lines +60 to +61
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Suggested change
TWITTER_USER=vercel
TWITTER_URL=https://twitter.com/$TWITTER_USER
TWITTER_USER=nextjs
TWITTER_URL=https://twitter.com/$TWITTER_USER

```

In the above example, `process.env.HOST` would be set to `http://localhost:8080`.
In the above example, `process.env.TWITTER_URL` would be set to `http://twitter.com/vercel`.
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Suggested change
In the above example, `process.env.TWITTER_URL` would be set to `http://twitter.com/vercel`.
In the above example, `process.env.TWITTER_URL` would be set to `https://twitter.com/nextjs`.


> **Note**: If you need to use variable with a `$` in the actual value, it needs to be escaped e.g. `\$`.

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