# scheme > MIT Scheme language interpreter and REPL (interactive shell). > More information: . - Start a REPL (interactive shell): `scheme` - Run a scheme program (with no REPL output): `scheme --quiet < {{script.scm}}` - Load a scheme program into the REPL: `scheme --load {{script.scm}}` - Load scheme expressions into the REPL: `scheme --eval "{{(define foo 'x)}}"` - Open the REPL in quiet mode: `scheme --quiet`