See below for the commands and statements that the interpreter recognizes.
All files are closed and all variables are cleared.
Variable names can be up to 31 significant characters, consisting of letters, digits, underscores, and an ending dollar sign. Variable names are case insensitive. If a statement starts with a variable name then an implied LET is assumed. This command will display its parameters tab delimited. If a semi-colon is used between parameters then no tab is inserted between the parameters.