for a list of command-line options and other start-up information.
Supplying no arguments to gracket is the same as supplying the -i option for interactive evaluation.
Supplying non-switch, non-configuration arguments to gracket is the same as putting -u before the arguments to run the first one as a module-based script.
to open installed documentation in your web browser.
Alternately, consult the on-line documentation and other information available at