The 'help' command is used to display on-line help messages. They are
short notes on the command <command>. The command may be abbreviated.
If the abbreviation is not unique, only the first help topic that matches
the command is listed.
The first line of the help text gives the syntax of the command that is explained in the following lines. For a few commands the syntax line is repeated for different set of possible parameters.
After the text is displayed, you are in the HELP sublevel of DISCUS and there are the following commands possible:
<command> : Display help for <command> of current help level. ".." : Go up one help level. "?" : Prints list of help entries of the current level. <RETURN> : Exit help sublevel.