Comment by pjmlp

By thinking in LP terms, like FP, LP requires rewiring the brain to think differently how to approach algorithms.

Here is a sample on how to read a file.

https://lpn.swi-prolog.org/lpnpage.php?pagetype=html&pageid=...

How to make syscalls,

https://www.swi-prolog.org/pldoc/man?section=foreign