CodeIgniter .htaccess for folder

.htaccess

<IfModule mod_rewrite.c>
RewriteEngine on
Options -Indexes
RewriteBase /foldername/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /foldername/index.php/$1 [L]

AddOutputFilter DEFLATE css js
ExpiresActive On
ExpiresByType application/x-javascript A2592000

</IfModule>