the script link is here.
https://www.dokuwiki.org/tips:convert_to_utf8
well I am not a php programmer and also not a english speaker. it means there are a lot of problem to use that script.
I wished to convert my dokuwiki pages from ascill to utf8(korean). but I don't know how do I.
I tried to type in my linux console.
php urldecode.php mypagedirectory destinationdirecory
but it doesn't work.