wordpress check / update with wp-cli

wp_check_update

# for crontab. e.g.:
# 5 5 * * * /root/bin/wp_check_update
BLOG_DIR=/var/www/<INSERT_BLOG_PATH>
wp --path=$BLOG_DIR core check-update --quiet
if [ "$?" != "0" ]; then
  Wordpress update required
  wp --path=$BLOG_DIR core check-update
fi

wp_update

BLOG_DIR=/var/www/<INSERT_BLOG_PATH>
wp --path=$BLOG_DIR core update
wp --path=$BLOG_DIR plugin update --all

wp_update_cli

curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar
mv wp-cli.phar ~/bin/wp
chmod +x ~/bin/wp