#!/bin/bash
dias=('19' '18' '17' '16' '15' '14' '13' '12' '11' '10' '09' '08' '07' '06' '05' '04' '03' '02')
for (( COUNT=0; COUNT<18; COUNT++ )) ; do
        echo "cd ${dias[$COUNT]}"
        cd ${dias[$COUNT]}
        wget -r -nd -np -l1 -A '*.pdf' http://www.linux-magazine.es/issue/${dias[$COUNT]}/
        cd ..
done