Bash Script to execute wp-cron.php on a Multisite Wordpress installation, extracting database info from wp-config.php.

wp-cron.sh

#!/bin/bash
# Script inspired by https://gist.github.com/1025598

#### WARNING ####
#### Please be careful with this script. The use of eval $(find) is dangerous.
#### If a user can upload a file called wp-config.php anywhere onto your site,
#### they can probably execute arbitrary commands via this script.
#### You have been warned. GPL, no warranty.

# Inspired by http://stackoverflow.com/questions/7586995/read-variables-from-wp-config-php
eval $(find . -name "wp-config.php" -print0 | xargs -0 -r grep -e "DB_HOST" -e "DB_NAME" -e "DB_USER" -e "DB_PASSWORD" | awk -F"[()']" '/^define/{printf "%s=\"%s\"\n", $3, $5;}')

DOMAINS=$(mysql --silent --skip-column-names --host $DB_HOST --user $DB_USER -p$DB_PASSWORD $DB_NAME --execute "SELECT CONCAT(domain,path) FROM wp_blogs WHERE archived = '0' AND spam = '0' AND deleted = '0';")

for DOMAIN in $DOMAINS
do
        wget --quiet --output-document=/dev/null http://$DOMAIN
        sleep 2
done

Please be careful with this script. The use of eval $(find) is dangerous. If a user can upload a file called wp-config.php anywhere onto your site, they can probably execute arbitrary commands via this script.