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---
name: Listen to OS signals
---
Bun supports the Node.js `process` global, including the `process.on()` method for listening to OS signals.
```ts
process.on("SIGINT", () => {
console.log("Received SIGINT");
});
```
---
If you don't know which signal to listen for, you listen to the umbrella `"exit"` event.
```ts
process.on("exit", (code) => {
console.log(`Process exited with code ${code}`);
});
```
---
If you don't know which signal to listen for, you listen to the [`"beforeExit"`](https://nodejs.org/api/process.html#event-beforeexit) and [`"exit"`](https://nodejs.org/api/process.html#event-exit) events.
```ts
process.on("beforeExit", (code) => {
console.log(`Event loop is empty!`);
});
process.on("exit", (code) => {
console.log(`Process is exiting with code ${code}`);
});
```
---
See [Docs > API > Utils](/docs/api/utils) for more useful utilities.
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