I am on ubuntu 10.04, somehow I deleted all the files in /usr/lib/apache2/modules, is there a way I can get them back or set it to default installation?
To generate a list of the apache related packages you have installed:
$ dpkg -l | grep apache
To search the files that are associated with each package:
$ dpkg -L <package name> | grep /usr/lib/apache2/modules
To reinstall packages that match the search:
$ sudo apt-get --reinstall install <package name>