The following examples show the various ways you can access HELP for the Disk File Optimizer utility. 1. $ DEFRAGMENT HELP This command invokes HELP for the Disk File Optimizer utility directly from DCL. 2. $ HELP DEFRAGMENT This command invokes HELP for the Disk File Optimizer utility directly from DCL. 3. DFO> HELP This command invokes HELP from within the Disk File Optimizer utility.