Command Line

dyalog [ options ] [ debug ] [ ws ] [param] [param] [param]...

where:

[dyalog]

Is the location of the Dyalog executable. Usually this is the full pathname, surrounded by double quotes.

[options]

-x	Disables the execution of the ⎕LX expression and the derived expression when code is loaded from a source code file or directory. This applies only at start-up and does not apply to workspaces or source files that are loaded subsequently. See Latent Expression and Load
-a	Start in USER mode.
-b	Suppress the banner in the Session..
-s	Disable the Session. This option is ignored in Windows versions.
+s	Force the display of the Session when it would otherwise not be shown.
-q	Don't quit APL on error (used when piping input into APL).
+q	Quit APL on error. In earlier versions of Dyalog, quitting on error saved a workspace with the reserved name CONTINUE; this behaviour can be re-enabled using 2704⌶. See Continue Autosave.
-c	Signifies a command-line comment. All characters to the right are ignored.
-cef -cef_all	Instructs Dyalog to ignore the parameter that immediately follows or all the parameters that follow. These options are intended to isolate parameters intended for the built-in Chromium Embedded Framework (CEF). See HTMLRenderer.

[debug]

-Dc	Check workspace integrity after every callback function.
-Dw	Check workspace integrity on return to session input.
-DW	Check workspace integrity after every line of APL (application will run slowly as a result)
-DK	Log session keystrokes in (binary) file ./apllog.

[ws]

The name of a Dyalog APL workspace to be loaded. Unless specified, on Windows the file extension .DWS is assumed.

[param]

A parameter name followed by an equals sign (=) and a value. The parameter name may be one of the standard APL parameters (see Configuration Parameters) or a name and value of your own choosing (see GetEnvironment). If the parameter is in a registry sub-folder (see Registry Sub-Folders), its name must be preceded by the name of the sub-folder, followed by a backslash (\) or underscore (_).

Note that instead of a loading a workspace specified by the ws option, APL can be instructed to load a program from a script file. For further information, see Load.

Examples:

Start APL using the configuration file myconfig.dcfg:

   "c:\program files\…\dyalog.exe" ConfigFile="myconfig.dcfg"

Load the workspace myapp, setting MaxWS parameter:

   "c:\program files\…\dyalog.exe" myapp maxws=2G

Load the workspace myapp, set an application specific parameter, but do not execute the latent expression:

   "c:\program files\…\dyalog.exe" -x myapp myparam=8080

Run the function defined in myfn.aplf:

   "c:\program files\…\dyalog.exe" load=myfn.aplf

Start APL and output "Hello World":

   "c:\program files\…\dyalog.exe" lx="⎕←'Hello World'"