Script to purge varnish specific url

varnishban.sh

#!/bin/bash
 
cmd="sudo varnishadm -T localhost:6082 -S /etc/varnish/secret"
page=$(echo $1 | awk -F'/' -v OFS='/' '{sub(/https?:\/\//, ""); $1=""; print $0}')
 
if [ -z "$1" ]; then
  echo "ERROR: please provide a URL to ban.."
  exit 1
fi
 
if [ -z "$page" ]; then
  page="/"
fi
 
echo "purging old version from cache.."
$cmd "ban req.url ~ ^$page\$" | sed '/^$/d'
 
echo "populating cache with new page content.."
curl -sL -w "%{http_code} %{url_effective}\n" http://tudomain${page} -o /dev/null