bash commands in nodejs

```js
const { exec } = require('child_process');
const util = require('util');
const execPromise = util.promisify(exec);

async function runCommand() {
  try {
    const { stdout, stderr } = await execPromise('echo "Hello from Bash!"');
    console.log(stdout);
  } catch (error) {
    console.error(`Error: ${error.message}`);
  }
}

runCommand();

```