bash: bulk test redirects

test.sh

Based on (this answer)[https://stackoverflow.com/a/28100010/2674883]:

One solution :

csv:

http://google.com;http://www.google.fr
http://domain.null;http://www.domain.null
code:

#!/bin/bash

while IFS=";" read -r url1 url2; do
    ret=$(curl -s -o /dev/null -w "%{http_code}\n" "$url1")
    ((ret >= 200 && ret <= 400)) && echo 'url1 PASS' || echo 'url1 FAIL'
    echo "url2 $(curl -s -L -o /dev/null -w "%{http_code}\n" "$url2")"
done < csv
If you need to know the real URL redirected (or not), use

curl -L -s -o /dev/null http://google.fr -w "%{url_effective}\n"
Feel free to improve to fit your needs.