Hi, Doan, Alex wrote: > Can someone explain to me why the following raise an error? (is this > something with File::Tail::Logfile.open not closing the file upon exit?) Yes. Check out version 1.0.1 of File::Tail, where it is fixed. (Though it may take some time to propagate the gem to the rubygems mirrors.) BTW.: You're lucky, that I have found your email here, if one considers that you didn't send it to me, and you reply-hijacked someone else's thread in order to write to ruby-talk. -- Florian Frank