1. Prolog CLI
-
Start Prolog’s repl
$ swipl-
Run code within prolog repl (prolog statements must end with '.')
$ swipl
?- write("hello, world").-
Start a program within swi-prolog repl
$ swipl
?- [program]-
Exit swi-prolog
$ swipl
?- halt.-
prolog code ends with
.pl
$ cat << EOF > hello.pl
write("hello, world").
EOF-
start prolog and load code
$ swipl -s hello.pl-
Proglog Help
$ swipl
?- help.
?- help(Topic).-
Exit (halt) Prolog:
$ swipl
?- halt.-
Load our Data:
$ swipl
?- [db].
?- consult('db.pl'). # alternative to [db].
?- listing. # shows/lists the db data