how to root your Android or at least understand how it works

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http://unix.stackexchange.com – I do not know exactly how rooting works or if it can even by done on my Android (Samsung GT-N8013) device. No rootkit appears to exist yet for Android 4.1.2, so I am left with figuring out how to root my device via other means. All I would like to do is do certain operations (on my own device!) e.g. read a file regardless of its permissions or run certain programs as root. So assuming we have your own physical Android device the permission model of Android/Linux the tools available e.g. adb, Android NDK, is it at all possible to make a process run as root on the current Linux version (HowTos)