How To Update Wordpress

For details, see: https://codex.wordpress.org/Upgrading_WordPress_-_Extended_Instructions

Download and unpack latest release

curl https://wordpress.org/latest.tar.gz >wp.tar.gz
tar xfz wp.tar.gz

Update files on website

cd /var/www/pocoproject.org/documents/blog

Delete wp-includes and wp-admin directories

rm -rf wp-includes/* wp-admin/*

Install new wp-includes and wp-admin directories

cp -R /home/webmaster/wordpress/wp-includes/* wp-includes/
cp -R /home/webmaster/wordpress/wp-admin/* wp-admin

Update wp-content directory

cp -R /home/webmaster/wordpress/wp-content/* wp-content

Update root directory

cp -R /home/webmaster/wordpress/*.php .

Run Upgrade Script

Go to https://pocoproject.org/blog/wp-admin/upgrade.php