> ## Documentation Index
> Fetch the complete documentation index at: https://e2b.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Running commands in background

To run commands in background, pass the `background` option to the `commands.run()` method. This will return immediately and the command will continue to run in the sandbox.
You can then later kill the command using the `commands.kill()` method.

<CodeGroup>
  ```js JavaScript & TypeScript highlight={7} theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  import { Sandbox } from 'e2b'

  const sandbox = await Sandbox.create()

  // Start the command in the background
  const command = await sandbox.commands.run('echo hello; sleep 10; echo world', {
    background: true,
    onStdout: (data) => {
      console.log(data)
    },
  })

  // Kill the command
  await command.kill()
  ```

  ```python Python highlight={6} theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  from e2b import Sandbox

  sandbox = Sandbox.create()

  # Start the command in the background
  command = sandbox.commands.run('echo hello; sleep 10; echo world', background=True)

  # Get stdout and stderr from the command running in the background.
  # You can run this code in a separate thread or use command.wait() to wait for the command to finish.
  for stdout, stderr, _ in command:
      if stdout:
          print(stdout)
      if stderr:
          print(stderr)

  # Kill the command
  command.kill()
  ```
</CodeGroup>