I want to run swipl prolog through command prompt,I want to read input.txt as a query file and want to output result to output.txt
My command line command:
swipl -f asd.pl < input.txt > output.txt
But my output result is comming on command prompt and getting blank output.txt file.
It's working right for me. Are you sure you are not receiving errors on command prompt ?
Note: to output stderr you should use 2>
filename
Example (test.pl):
:- initialization(main).
main:-
repeat,
read(Term),
writeln(term(Term)),
Term=end_of_file -> halt, fail.
swipl.exe -f test.pl < test.pl > test.txt 2> stderr.txt
writes on test.txt:
term((:-initialization main))
term((main:-repeat,read(_G747),writeln(term(_G747)),_G747=end_of_file->halt,fail))
term(end_of_file)
and on stderr.txt:
% c:/swi/workspace/test.pl compiled 0.00 sec, 4 clauses