Is there a way to reinstall all installed (.deb) packages with a terminal command. I think some package is corrupted (I don't know which) and I don't want to reinstall the OS (which will need a lot of energy and time to recusotomize).
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1"I think some package is corrupted" why? and re-installing probably will not fix that ;) – Rinzwind May 19 '14 at 19:18
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I have a problem with keyboard http://unix.stackexchange.com/questions/130772/giving-more-priority-to-a-usb-device and some bash scripts run by hotkeys no longer work. The solution is reinstalltion of the OS. But I want to try other things. – Minimus Heximus May 19 '14 at 19:37
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You first need to understand a few things.
First, apt-get / dpkg / apt , by default, will not overwrite configuration files if they already exist.
You can over ride this behavior.
sudo apt-get -o Dpkg::Options::="--force-overwrite" install python-profiler
see : Force apt-get to overwrite file installed by another package
This is one of the reasons why, unlike other OS perhaps, re-installing a package typically will not fix a problem.
You can purge and re-install a package, as purge will remove config files.
But even a purge will not remove config files in your home directory.
Second, unless you manually edited a system file, reinstalling will not help as you did not really change anything. This is because user specific settings are stored in $HOME .
Third, custom configuration files, for your keyboard or other settings etc, reside in your home directory. These user files will not change by re-installing a package, you need to delete or edit the files manually.
Fourth, nothing in the question you linked suggested re-installing your entire system would fix your problem.
To debug your problem, identify your hardware and check your logs for errors.
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The last comment there proves that the man problem is with the OS. – Minimus Heximus May 19 '14 at 21:06