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---
name: Read environment variables
---
The current environment variables can be accessed via `process.env`.
```ts
process.env.API_TOKEN; // => "secret"
```
---
Bun also exposes these variables via `Bun.env`, which is a simple alias of `process.env`.
```ts
Bun.env.API_TOKEN; // => "secret"
```
---
To print all currently-set environment variables to the command line, run `bun run env`. This is useful for debugging.
```sh
$ bun run env
BAZ=stuff
FOOBAR=aaaaaa
<lots more lines>
```
---
See [Docs > Runtime > Environment variables](/docs/runtime/env) for more information on using environment variables with Bun.
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