System command: Difference between revisions

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== List of system commands ==
== List of system commands ==
=== ISO/IEC 13751:2001 ===
[[Standards|ISO/IEC 13751:2001]] standard defined the following system commands:<ref>BS ISO/IEC 13751:2001: Information technology. Programming languages, their environments and system software interfaces. Programming language Extended APL. (2001).</ref>
{|class="wikitable"
! Command !! Description
|-
| <source lang=apl inline>)CLEAR</source> || Clear active workspace.
|-
| <source lang=apl inline>)COPY</source> || 􏰝
Copy library workspace / 􏰝
Copy library workspace object.
|-
| <source lang=apl inline>)DROP</source> || Drop library workspace.
|-
| <source lang=apl inline>)ERASE</source> || Erase global referent.
|-
| <source lang=apl inline>)FNS</source> || Lists global function names.
|-
| <source lang=apl inline>)LIB</source> || 􏰝
List library directory.
|-
| <source lang=apl inline>)LOAD</source> || 􏰝
Load library workspace.
|-
| <source lang=apl inline>)NMS</source> || List global names and their name class.
|-
| <source lang=apl inline>)OPS</source> || 􏰝
List global operator names.
|-
| <source lang=apl inline>)SAVE</source> || 􏰝
Save active workspace / 􏰝
Save active workspace with name.
|-
| <source lang=apl inline>)SI</source> || List state indicator.
|-
| <source lang=apl inline>)SIC</source> || Clear state indicator.
|-
| <source lang=apl inline>)SINL</source> || List state indicator and local names.
|-
| <source lang=apl inline>)VARS</source> || 􏰝
List global variable names.
|-
| <source lang=apl inline>)WSID</source> || 􏰝
List workspace identification / Change workspace identification.
|}
=== Dyalog APL ===
=== Dyalog APL ===
[[Dyalog APL]] supports the following system commands:
[[Dyalog APL]] supports the following system commands:
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* [[Dyalog APL]]: [https://help.dyalog.com/18.0/index.htm#Language/System%20Commands/Introduction.htm System Commands – Introduction]
* [[Dyalog APL]]: [https://help.dyalog.com/18.0/index.htm#Language/System%20Commands/Introduction.htm System Commands – Introduction]
* [[APLX]]: [http://microapl.com/apl_help/ch_020_010_120.htm Introduction], [http://microapl.com/apl_help/ch_020_060.htm List of system commands]
* [[APLX]]: [http://microapl.com/apl_help/ch_020_010_120.htm Introduction], [http://microapl.com/apl_help/ch_020_060.htm List of system commands]
=== References ===
<references/>


[[Category:APL environment]]
[[Category:APL environment]]
[[Category:APL syntax]]
[[Category:APL syntax]]

Revision as of 13:06, 9 August 2020

System commands provide services or information associated with the workspace and the environment. They are not part of the APL language itself.

APL system commands start with a right parenthesis, e.g., )save, )pcopy.

List of system commands

ISO/IEC 13751:2001

ISO/IEC 13751:2001 standard defined the following system commands:[1]

Command Description
)CLEAR Clear active workspace.
)COPY 􏰝
Copy library workspace / 􏰝
Copy library workspace object.
)DROP Drop library workspace.
)ERASE Erase global referent.
)FNS Lists global function names.
)LIB 􏰝
List library directory.
)LOAD 􏰝
Load library workspace.
)NMS List global names and their name class.
)OPS 􏰝
List global operator names.
)SAVE 􏰝
Save active workspace / 􏰝
Save active workspace with name.
)SI List state indicator.
)SIC Clear state indicator.
)SINL List state indicator and local names.
)VARS 􏰝
List global variable names.
)WSID 􏰝
List workspace identification / Change workspace identification.

Dyalog APL

Dyalog APL supports the following system commands:

Command Description
)classes Lists the APL classes in the active workspace.
)clear Clear the workspace.
)cmd {Y} Executes an operating system command; equivalent to )sh.
)continue Saves the active workspace as Continue and terminate APL.
)copy {Y} Copies all or selected objects from a saved workspace into the active workspace.
)cs {Y} Change current namespace.
)drop {Y} Deletes a named workspace.
)ed Y Opens an object in the editor.
)erase Y Deletes objects from the active workspace.
)events Lists the events that the current GUI namespace may generate.
)fns {Y} Lists global functions in the active workspace.
)holds Lists the tokens acquired or requested by :Hold.
)interfaces List the currently active interfaces.
)lib {Y} Lists all available workspaces or workspaces in a directory Y.
)load {Y} Replace the active workspace by a saved workspace.
)methods List methods in GUI namespace or object.
)ns {Y} Create a global namespace / Query the name of the current namespace.
)obs {Y} List the global namespaces in the active workspace. Synonym: )objects {Y}.
)off Terminate APL immediately.
)ops {Y} Lists global operators in the active workspace.
)pcopy {Y} Protected copy. Similar to )copy, but does not overwrite existing objects.
)props List properties of GUI namespace or object.
)reset Clears the execution stack (Reset the state indicator).
)save {Y} Saves the active workspace to disk.
)sh {Y} Executes an operating system command; equivalent to )cmd.
)si State Indicator.
)sic Clear State Indicator.
)sinl State Indicator with local Name List.
)tid {Y} Switches to suspended thread, or lists the current thread number.
)vars {Y} Lists global variables in the active workspace.
)wsid {Y} Query / Set the identity of the active workspace.
)xload Y Load a workspace without executing its Latent Expression (⎕LX).

External links

Tutorials

Documentation

References

  1. BS ISO/IEC 13751:2001: Information technology. Programming languages, their environments and system software interfaces. Programming language Extended APL. (2001).