$ tr a-z l-za-m $ tr -cd a-z Absent the comments, who the hell knows what either of these do? Certainly not the new guy on your team who has spent most of his

$ tr a-z l-za-m $ tr -cd a-z Absent the comments, who the hell knows what either of these do? Certainly not the new guy on your team who has spent most of his life in the more popular environments.