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#my $cmd = 'pdftohtml ' . $filename_pdf . ' ' . $filename_html . ' -no +f ... my @args = ( $filename_pdf, $filename_html, 'noframes', '-c-, '-i' , ' +>', '/dev/null' ); system ('pdftohtml', @args);
$pid = open(MP, "| mplayer @options init.mpg >/dev/null 2>&1 ");