Change all files or folder permissions with chmod

chmod-files-folders.sh

#!/bin/bash

# files
sudo find . -type f -exec chmod 644 {} +
 
# folders
sudo find . -type d -exec chmod 755 {} +

chmod-wordpress.sh

#!/bin/bash

# files
sudo find . -type f -exec chmod 644 {} +
 
# folders
sudo find . -type d -exec chmod 755 {} +
 
# wp-config.php
sudo chmod 600 wp-config.php