> ## Documentation Index
> Fetch the complete documentation index at: https://bun-1dd33a4e-claude-bun-standalone.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Get the path to an executable bin file

`Bun.which` is a utility function to find the absolute path of an executable file. It is similar to the `which` command in Unix-like systems.

```ts foo.ts icon="https://mintcdn.com/bun-1dd33a4e-claude-bun-standalone/AcjngduDNBkyJyQv/icons/typescript.svg?fit=max&auto=format&n=AcjngduDNBkyJyQv&q=85&s=bc960f24c3d5cd52fd2d62b2b8397a15" theme={"theme":{"light":"github-light","dark":"dracula"}}
Bun.which("sh"); // => "/bin/sh"
Bun.which("notfound"); // => null
Bun.which("bun"); // => "/home/user/.bun/bin/bun"
```

***

See [Docs > API > Utils](/runtime/utils#bun-which) for complete documentation.