Call wp-cron.php on WP Multisite installations

wp_multisite_cron.sh

#!/bin/bash

# Call wp-cron.php on WP Multisite installations
# Requires WP-CLI
# Looks for WP_PATH in {user_home}/wp-cli.yml, otherwise must pass in as $1

# Set up cron job with crontab -e
# Use MAILTO to send output to email or write to a log file 'bash ~/wp_multisite_cron.sh >> crontab.log'
# MAILTO=admin@email.nz
# */1 * * * * bash ~/wp_multisite_cron.sh [WP_PATH]

if [[ ! -f /usr/local/bin/wp ]]; then
    echo 'ERROR: WP-CLI not found!' && exit 1
fi

# Use either passed in WP_PATH or fetch from ~/wp-cli.yml
if [[ $1 ]]; then
    wp_path="--path=$1"
else
    if [[ ! -f ~/wp-cli.yml ]]; then
    	echo 'ERROR: wp-cli.yml not found! Exiting ...' && exit 1
    fi
fi

# Get the default site for the network (we don't need this so, commented out)
# default_site=$( /usr/local/bin/wp option get siteurl $wp_path )

# fetch the network's site urls
site_urls=$( /usr/local/bin/wp site list $wp_path --fields=url --archived=0 --deleted=0 --format=csv | tail -n +2 )

# run the cron tasks
if [[ $site_urls != '' ]]; then
    echo
    echo "**** Running: WP Cron for ALL sites on Multisite network ****"
	for site in $site_urls;
        do
            /usr/local/bin/wp cron event run --due-now --url="$site" $wp_path && echo -e "\t+ Finished crons for $site"
        done
    echo "**** Complete: WP Cron ****"
    echo
fi
exit