                           Dos-Commands
-----------------------------------------------------------------
  To execute a DOS-Command you have to intodruce
  it with a "!"-character.
  Because the cd-command has no effect Dust will use
  its internal cd-command automatically, the commands
  "!cd ram:" and "cd ram:" are the same.

  Examples:
   !dir hd1:
   !ed grafix/test
   !delete ram:tmpfile
