crawl.sh

# $1 - name of file, that contains urls list
# $2 - name of output pdf file

url_list=$1
output=$2

set -- $(cat $url_list); count=0;
pdf_list=""
for arg;
do 
    (( ++count ));
    echo "Download ${arg}"
    wkhtmltopdf ${arg} ${count}.pdf;
    pdf_list="$pdf_list ${count}.pdf"
done
echo "Merge $pdf_list into ${output}"
pdfunite $pdf_list $output
rm $pdf_list