Position indicators &1 to &9 contained in command files can be replaced by any character string, if the corresponding parameters are specified with a preceding -p in the RUN or BATCH command.
The individual parameters are separated from each other by blanks. If a character string consisting of several words is inserted for &n, then the nth parameter must be enclosed in single quotation marks.
If a statement contains a character string &n and less than n parameters are specified with the call, then &n is replaced by an empty character string. This is not true if no parameters were specified at all.