The command language also allows you to save your jobs in a syntax file so that you can repeat your analysis at a later date. The slash before the first subcommand on a command is usually optional. Variable names must be spelled out fully. Text included within apostrophes or quotation marks must be contained on a single line. Each line of command syntax cannot exceed 80 characters.
Variable names ending in a period can cause errors in commands created by the dialog boxes.
You cannot create such variable names in the dialog boxes, and you should generally avoid them. Command syntax is case insensitive, and three-letter abbreviations can be used for many command specifications. You can use as many lines as you want to specify a single command. You can add space or break lines at almost any point where a single blank is allowed, such as around slashes, parentheses, arithmetic operators, or between variable names. Pasting command syntax from dialog boxes.