I'd say it's more of a shell than a REPL. For most languages that provide a shell, there isn't a real separation between the reader, evaluator, and the printer.

I'd say it's more of a shell than a REPL. For most languages that provide a shell, there isn't a real separation between the reader, evaluator, and the printer. Being able to interact with those components separately is the real advantage of a REPL over a shell.