If you are using GreG in ``Library Only'' mode, you can just run your program normally.
If you are using the ``Interactive'' mode you need to provide the assignments of GreG help files and working files to your program. All compulsory assignments are made system wide, so you can just run the program. You will obtain help for the SIC command monitor and the log file will be written on the logical unit LOG, (unless you call SIC_OPT, see the SIC manual). If you have not assigned the logical name LOG to a file name, each run of your program will create a new version of the file LOG.DAT in your current directory. No automatic purge of the log file will be made when your program exits.