Curl list of urls and save http response code & times (useful for cache warmup)

curl_all.sh

#!/bin/bash

[ ! $1 ] && echo "you must include a file containing urls, one per line" && exit 1
while read LINE; do
  curl -o /dev/null --silent --progress-bar --head --write-out '%{http_code} %{time_starttransfer} %{url_effective}\n' "$LINE"
done < $1