Perl, latex and linux Error logging

hamidafshar has asked for the wisdom of the Perl Monks concerning the following question:

Hi brethren, I am using Perl, template toolkit and latex to write to a PDF file. I would like some way of being able to record an error log or when my PDF file shows nothing (which suggests there is an error) I like to be able to read a log that tells me what the error is. This is the code that creates the template file and prints the output:

my $vars = {title => '', rows => \@rows, inv_add => \@inv_rows};
my $temp = '/tmp/TEST_'.$inv_no.'_'.$$;
my $file = $temp.".tex";
$tt->process('printInvoice.tmpl', $vars, $file) || die $tt->error();
system("Can I write something here of some use???");
print header(-type=>'application/pdf');
open(PDF, $temp.'.pdf');
while (<PDF>) {
    print $_;
}
close(PDF);
[download]

Thanks for your wisdom.

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Re: Perl, latex and linux Error logging by moritz (Cardinal) on Sep 12, 2011 at 09:41 UTC
I don't know about your pdflatex, but all versions that I've used so far (miktex, texlive, xelatex) automatically wrote a .log file, which contains a transcript of the latex output. So `system("pdlatex $other_options $filename.tex >/dev/null 2>&1");` should do, and then examine `$filename.pdf`. By the way File::Temp offers a safer and better way to generate temporary files (and file names). Perl 6 - second systems done right	[reply] [d/l] [select]
Re^2: Perl, latex and linux Error logging by hamidafshar (Novice) on Sep 12, 2011 at 09:56 UTC
Very helpful, ta	[reply]