Introduction

System commands are not executable APL expressions.  They provide services or information associated with the workspace and the external environment.

Command Presentation

System commands may be entered from immediate execution mode or in response to the prompt ⎕: within evaluated input.  All system commands begin with the symbol ), known as a right parenthesis.  All system commands may be entered in upper or lower case.

Table 28: System Commands

Command	Description
)CLASSES	List classes
)CLEAR	Clear the workspace
)CMD Y	Execute a Windows Command
)CONTINUE	Save a Continue workspace and terminate APL
)COPY {Y}	Copy objects from another workspace
)CS {Y}	Change current namespace
)DROP {Y}	Drop named workspace
)ED Y	Edit object(s)
)ERASE Y	Erase object(s)
)EVENTS	List events of GUI namespace or object
)FNS {Y}	List user defined Functions
)HOLDS	Display Held tokens
)LIB {Y}	List workspaces in a directory
)LOAD {Y}	Load a workspace
)METHODS	List methods in GUI namespace or object
)NS {Y}	Create a global Namespace
)OBJECTS {Y}	List global namespaces
)OBS {Y}	List global namespaces (alternative form)
)OFF	Terminate the APL session
)OPS {Y}	List user defined Operators
)PCOPY {Y}	Perform Protected Copy of objects
)PROPS	List properties of GUI namespace or object
)RESET	Reset the state indicator
)SAVE {Y}	Save the workspace
)SH {Y}	Execute a (UNIX) Shell command
)SI	State Indicator
)SIC	Clear State Indicator
)SINL	State Indicator with local Name Lists
)TID {Y}	Switch current Thread Identity
)VARS {Y}	List user defined global Variables
)WSID {Y}	Workspace Identification
)XLOAD Y	Load a workspace; do not execute ⎕LX
{ } indicates that the parameter(s) denoted by Y are optional.