It is common practice to indent all of a command except the initial keyword by starting them with a Tab. This makes the command keywords readily visible. Spaces and commas are called common delimiters, and may be used interchangeably or together, between keywords, variable names, and special delimiters. Spaces can be used almost anywhere, but they cannot be stuck in the middle of a keyword or name. The slash separates the subcommand clauses of a command.
Most commands have many optional subcommands.
Beginners should start by leaving out anything that's optional. Once both the .SPS and the .DAT files have been created, the job is run by entering this command. This tells the computer to carry out the steps given in the command file. Jobs with errors may be corrected and run again without taking time or paper to print the output. Successful jobs may be sent to any printer.