Installing SWI-Prolog In Ubuntu

SWI-Prolog is a free interpreter available for logical language Prolog. In order to practice Prolog in ubuntu(or linux), you need to install SWI Prolog in your system. SWI-Prolog is available for all major linux flavours for installation from the repository.

To install SWI-Prolog in ubuntu or debian based systems, type the following command in the terminal:

sudo apt-get install swi-prolog

To run swi-prolog, open the terminal and type swipl to get to interactive prolog interpreter. Your prolog code must be saved with the extension .pl and to run the prolog file(which is known as consulting in case of prolog), cd to the respective directory, run the swipl and run the file by typing [filename]. and be sure to include the dot(.) and make sure you don't miss those big square braces.

To exit swi-prolog, type halt and press ENTER.

If you want to read the manual of SWI Prolog, open the browser and type in the address bar the address as file:///usr/lib/swi-prolog/doc/Manual/index.html and you can read reference manual.

I hope this makes a quick guide for installing and running swi-prolog in linux or more specifically ubuntu.