text: const shebangRegex = /^#!(.*)/;
  
  export default function shebang(string = '') {
  	const match = string.match(shebangRegex);
  
  	if (!match) {
  		return null;
  	}
  
  	const [path, argument] = match[0].replace(/#! ?/, '').split(' ');
  	const binary = path.split('/').pop();
  
  	if (binary === 'env') {
  		return argument;
  	}
  
  	return argument ? `${binary} ${argument}` : binary;
  }
  