Date: 2020-10-07 18:10:00

Up | Next | Prev | PrevTail | Tail

## 6 Commands and Declarations

A command is an order to the system to do something. Some commands cause visible results (such as calling for input or output); others, usually called declarations, set options, deﬁne properties of variables, or deﬁne procedures. Commands are formally deﬁned as a statement followed by a terminator

⟨command⟩ | ::= | ⟨statement⟩⟨terminator⟩
⟨terminator⟩ | ::= | ;∣$

Some REDUCE commands and declarations are described in the following sub-sections.

6.1 Array Declarations
6.2 Mode Handling Declarations
6.3 END
6.4 BYE Command
6.5 SHOWTIME Command
6.6 DEFINE Command

Up | Next | Prev | PrevTail | Front