WP-CLI: Add a user to all sites in a network

distribute_user.sh

#!/bin/bash

# Usage: ./distribute_user.sh [username] [role]

ARGS="$@"
echo "Adding user $1 as $2 to all sites"

SITES=$(wp site list --field=url --format=csv)
for site in $SITES
do
	wp user set-role $1 $2 --url=$site
done

Elegant solution, saved me from a laborious task. Thank you.

FYI this seems to add the user to the site, but the sites won't appear in the user's drop down list on the backend. You still have to 'add' them in manually