The dbxtra help facility

Above the (dbxtra) prompt, Type help for help, is displayed. Help can be invoked in two ways, first by typing help at the prompt, a general list of dbxtra's commands are displayed. For a more detailed explanation of a specific command, invoke help with the dbxtra command name as an argument. For example:

   (dbxtra) help forward
   forward [n]
   backward [n]
   Scroll the source window forward and backward n lines 
   (the default is one window).