WordPress update issue from wp-admin

TROUBLE:

Update WordPress
Downloading update from https://downloads.wordpress.org/release/wordpress-4.6.1-no-content.zip…

Unpacking the update…

The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions.: wp-admin/includes/update-core.php

Installation Failed

FIX was this:

sudo find /nas/content/live/cdbackslash/ -type f -exec chmod 664 {} \;
sudo find /nas/content/live/cdbackslash/ -type d -exec chmod 775 {} \;
sudo find /nas/content/live/cdbackslash/ -exec chown www-data:www-data {} \;

ASSIST:

http://stackoverflow.com/questions/12827513/what-permissions-should-a-wordpress-installation-have-to-be-secure-but-functiona

https://aaronjholbrook.com/wordpress-permissions-update-error-resolved/