code: func BashQuote(env string) string {
  	out := []rune{'"'}
  	for _, r := range env {
  		switch r {
  		case '$', '\\', '"':
  			out = append(out, '\\', r)
  		default:
  			out = append(out, r)
  		}
  	}
  	out = append(out, '"')
  	return string(out)
  }
docs: // BashQuote escapes the provided string and surrounds it with double quotes.
  // TODO: verify that these are all we have to escape.