system-administration

We are providing one default app for our customers with android phone. Which user can not be uninstall. I have used Device Admin feature from this example But user can delete app by deactivate from settings. Another possible way I have found to install app in System/apps folder like all google apps (I am not sure). For that I need to root access, so I am planning to do following, But not sure how to implement it. Programatically Root device Install app in System/apps folder Unroot device again Like many System apps, How they are doing for such kind of feature ? Please help. I made custom

I have an rpm and I want to treat it like a tarball. I want to extract the contents into a directory so I can inspect the contents. I am familiar with the querying commands of an uninstalled package. I do not simply want a list of the contents of the rpm. i.e. $ rpm -qpl foo.rpm I want to inspect the contents of several files contained in the rpm. I do not want to install the rpm. I am also aware of the rpms ability to do additional modifictions in the %post sections, and how to check for those. i.e. $ rpm -qp --scripts foo.rpm However in this case that is of no concern to me. linux_fanatic