I have taken backup using following command.
bench --site [sitename] backup
When i have restored that backup file then whatever customization i have did on Opportunity doctype it havent reflected. Is there any way to get complete everything whatever u have done so far after restoring?
If the database connected to the site you created in the bench is still fine, you should be able to find the missing documents (database records) in the tables of it.
You can try to find it using:
bench --site <your site's name> mariadb
and there you have access to all the tables. Try for instance:
show tables like "tabOpport%";
You may need to locate linked records in other tables because Info that appears in one doctype’s form can be fragmented (= in different locations) in the database.