website content management
I've been searching for a website management, but I can't find that's suitable for me.
Most of the CMS solutions are enabling users to create a website. What I want is some kind of management. For example, I already have a number of websites. But if there's update, I have to change the file manually or I might just copy the website directory to web_old and move the new one in. Then when everything is ok, I can delete web_old directory.
Is there a way to automate this (even to the extent of specifying the time of changing)?