note pvaldes <p>Ok, this is the error that you want to catch, two "," at the end of the line. This is not a perl error, is a bibtex error of course, perl should know nothing about this (but Text::BibTeX should).</p> <c>TITLE = {Arranging Arguments},,</c> <p>and if I comment all the fuss about STDERR and simply modify this line I got the bibtex error correctly</p> <c>my $entry = new Text::BibTeX::Entry $bib_entry or die $!; </c> <p>Update: Is obvious after reading the other answers that I had not understood the question at all...</p> 929318 929318