2.4.2 Command line options for running Prolog

--home=DIR

Use DIR as home directory. See section 11.6 for details.

--quiet

Set the Prolog flag verbose to silent, suppressing informational and banner messages. Also available as -q.

--nodebug

Disable debugging. See the current_prolog_flag/2 flag generate_debug_info for details.

--nosignals

Inhibit any signal handling by Prolog, a property that is sometimes desirable for embedded applications. This option sets the flag signals to false. See section 11.4.21.1 for details.

--pldoc [=port]

Start the PlDoc documentation system on a free network port and launch the user's browser on http://localhost:port. If port is specified, the server is started at the given port and the browser is not launched.

-tty

Unix only. Switches controlling the terminal for allowing single-character commands to the tracer and get_single_char/1. By default, manipulating the terminal is enabled unless the system detects it is not connected to a terminal or it is running as a GNU-Emacs inferior process. See also tty_control.

--win_app

This option is available only in swipl-win.exe and is used for the start-menu item. If causes plwin to start in the folder ...\My Documents\Prolog or local equivalent thereof (see win_folder/2). The Prolog subdirectory is created if it does not exist.

-O

Optimised compilation. See current_prolog_flag/2 flag optimise for details.

-s file

Use file as a script file. The script file is loaded after the initialisation file specified with the -f file option. Unlike -f file, using -s does not stop Prolog from loading the personal initialisation file.

-f file

Use file as initialisation file instead of the default .swiplrc (Unix) or swipl.ini (Windows). `-f none' stops SWI-Prolog from searching for a startup file. This option can be used as an alternative to -s file that stops Prolog from loading the personal initialisation file. See also section 2.2.

-F script

Select a startup script from the SWI-Prolog home directory. The script file is named <script>.rc. The default script name is deduced from the executable, taking the leading alphanumerical characters (letters, digits and underscore) from the program name. -F none stops looking for a script. Intended for simple management of slightly different versions. One could, for example, write a script iso.rc and then select ISO compatibility mode using pl -F iso or make a link from iso-pl to pl.

-x bootfile

Boot from bootfile instead of the system's default boot file. A boot file is a file resulting from a Prolog compilation using the -b or -c option or a program saved using qsave_program/[1,2].

-p alias=path1[:path2 ... ]

Define a path alias for file_search_path. alias is the name of the alias, and arg path1 ... is a list of values for the alias. On Windows the list separator is ;. On other systems it is :. A value is either a term of the form alias(value) or pathname. The computed aliases are added to file_search_path/2 using asserta/1, so they precede predefined values for the alias. See file_search_path/2 for details on using this file location mechanism.

--traditional

This flag disables the most important extensions of SWI-Prolog version 7 (see section 5) that introduce incompatibilities with earlier versions. In particular, lists are represented in the traditional way, double quoted text is represented by a list of character codes and the functional notation on dicts is not supported. Dicts as a syntactic entity, and the predicates that act on them, are still supported if this flag is present.

--

Stops scanning for more arguments, so you can pass arguments for your application after this one. See current_prolog_flag/2 using the flag argv for obtaining the command line arguments.