Question

I’m trying to set up an environment with interprolog and SWI prolog, interprolog needs the location of swi’s “pl” but i cant find it. All i can find is swipl or plrc and neither work with interprolog. If i type pl into the terminal(this should run swi-prolog) it says

bash: pl :command not found

but if i type in

swipl

or

prolog

it runs swiprolog fine.

the thing is interprolog requires pl, which i cant seem to find.

anyone have any ideas how i can get around this?

thanks

Answer 1

Have I understood your question, Is pl a symbolic link to the prolog software? Check the location of the pl executable by where pl or
maybe you need to make the prolog source code .pl executable and add a header at the top of it…

#! /bin/swiprolog -f

; Prolog code here...

And use chmod u+x some_file.pl. Then when bash executes, it checks to see the top bit of the file ‘#! /bin/swiprolog -f’, I’m using the ‘-f’ switch to say pass it into the prolog interpreter…check your documentation…

Hope this helps,
Best regards,
Tom.