The format of the commands follows these general conventions:
- Any line with * (an asterisk) in column 1
is treated as a comment (unless the asterisk is part of a continued
quoted string).
- Column 72 is for continuation in some cases.
- Columns 73 through 80 of all lines are ignored.
- Blank lines are ignored.
- A single command can contain a maximum of 8191 characters.