drupal

1. cd to Drupal installation Directory

2. Backup Drupal

drush archive-dump

3. Check Drupal Update and get the list of modules that have update

drush ups

4. Set Drupal Website to maintenance mode

drush sset system.maintenance_mode 1

5. Clear Drupal Cache

drush cr

6. Update Drupal and press "Y" when asked

drush up drupal

7. Update Drupal Database

By default, Drupal will not allow running of any other PHP scripts within Drupal directory. It will return "403 Forbidden", if anybody trying to access the PHP scripts.

To by pass this constraint, we will need to add 2 lines in .htaccess. .htaccess is in Drupal root directory.

1. Open .htaccess with a text editor

2. Find the section below: