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## Handle OS Signals
> This program makes use of an unstable Deno feature. Learn more about
> [unstable features](../runtime/stability.md).
[API Reference](https://doc.deno.land/https/raw.githubusercontent.com/denoland/deno/master/cli/dts/lib.deno.unstable.d.ts#Deno.signal)
You can use `Deno.signal()` function for handling OS signals.
```ts
for await (const _ of Deno.signal(Deno.Signal.SIGINT)) {
console.log("interrupted!");
}
```
`Deno.signal()` also works as a promise.
```ts
await Deno.signal(Deno.Signal.SIGINT);
console.log("interrupted!");
```
If you want to stop watching the signal, you can use `dispose()` method of the
signal object.
```ts
const sig = Deno.signal(Deno.Signal.SIGINT);
setTimeout(() => {
sig.dispose();
}, 5000);
for await (const _ of sig) {
console.log("interrupted");
}
```
The above for-await loop exits after 5 seconds when sig.dispose() is called.
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