ycombinator hacker news

#!/bin/bash
counter=10
curl https://hacker-news.firebaseio.com/v0/topstories.json?print=pretty > /var/www/html/pbr/tmp/hnews
cat /var/www/html/pbr/tmp/hnews |grep -o '[0-9]\{7,8\}' > /var/www/html/pbr/tmp/hnews2
truncate -s 0 /var/www/html/pbr/tmp/hnews
echo '[' >> /var/www/html/pbr/tmp/hnews
cat /var/www/html/pbr/tmp/hnews2 | while read -r line;
do
curl https://hacker-news.firebaseio.com/v0/item/$line.json?print=pretty >> /var/www/html/pbr/tmp/hnews
counter=$((counter-1))

if [ $counter -eq 0 ]
then
        echo ']' >> /var/www/html/pbr/tmp/hnews
        exit 1
else
        echo ',' >> /var/www/html/pbr/tmp/hnews
fi

done

rm /var/www/html/pbr/tmp/hnews2