Configuration parameter syntax Each line in the configuration files consists of a keyword identifying the option being specified, and a value which is a parameter to be used for this option. The specification of the keywords is case insensitive so that any combination of upper and lower case letters will have the same meaning. Hence, DCDfile and dcdfile are equivalent. The capitalization in the values, however, may be important.
Some values indicate file names, in which capitalization is critical.
Other values such as on or off are case insensitive.