i'm afraid like a newbie i jump before before i look. the pkg had a tar.gz format instead of tgz like slack requires. i've itnstalled it alredy when i noticed the difference. thanks just the same for your prompt response.
incidentally, could you elucidate on the difference between the -m, -r and the third option, which escapes me right now, when installing a tgz pkg. the book definitions are not all that clear to me. thanks again.