OK, thanks for the clue!

I can't swear I already used this method but it seems familiar to me....

Though, I know the perloc -f command but the twig one seems too much complex for me...nobody's perfect ;)

The twig web site got some examples too, I tried to adapt these examples to my needs but with no success.

I'll try this code portion tommorrow and will keep you informed about the results.

Regards.

Jerome.