# Displaying General Option Information From the Command Line

To display a list of all available compiler options, specify option help on the command line.

To display functional groupings of compiler options, specify a functional category for option help. For example, to display a list of options that affect diagnostic messages, enter one of the following commands:

    -help diagnostics     ! Linux and macOS* systems

    /help diagnostics     ! Windows systems

For details on other categories you can specify, see help.

Parent topic: Ways to Display Certain Option Information