A small bash script to set the required permissions for an ExpressionEngine installation.

ee-perms.sh

#!/usr/bin/env bash
 
pushd /var/www/html/
 
# Set default permissions
find . -type d -exec chmod 755 '{}' ';'
find . -type f -exec chmod 644 '{}' ';'
 
# Set directories permissions
ee_dirs=(
	system/expressionengine/cache/
	images/avatars/uploads/
	images/captchas/
	images/member_photos/
	images/pm_attachments/
	images/signature_attachments/
	images/uploads/
)
for dir in ${ee_dirs[@]}; do
	chmod -R 777 $dir
done
 
# Set config file permissions
chmod 666 system/expressionengine/config/config.php
chmod 666 system/expressionengine/config/database.php
 
popd