How to make a redirect from any pages to the main page except for the admin panel?

Question

htaccess

It is necessary to close user access to any pages except the main and admin panel, that is, the available addresses are only / and /bitirx/admin

Answer 1

RewriteCond %{REQUEST_URI} !^(.*)/bitirx/admin 
RewriteRule ^(.*)$ %1/ [R=301,L]