Why does it have something called 'say' instead of something more intuitive like 'println'. Why is the Unix command `ls` not `list-directory-contents`? Sure, i

Why does it have something called 'say' instead of something more intuitive like 'println'. Why is the Unix command `ls` not `list-directory-contents`? Sure, it's a lot more for everyone to type all the time, but you could get rid of a single line in the man page, meaning the name is much, much more intuitive!