The help command can be used to obtain a short description of commands, input parameters, and variables. The syntax is:
HELP,set,name,[keys]
where set is either COMMAND, VARIABLE, or the name of the input set (e.g., THRESH, PRINT, LOCAL, EOM, CFIT), and name is the name of the parameter. If name is blank, all parameters of the set are shown. Optionally, keys can be specified to request specific information (e.g., short_description, long_description, default_value, type, program). If keys are not given, short_description is assumed.
Currently, help is only available for a limited number of parameters and commands. However, the database will be extended in the near future.