How to reset software package configurations?
1104
How can I restore configuration files?
28369
Configuration and compilation settings used for Ubuntu packages
118661
How to solve apt "package cannot be configured because package is in a different version" errors?
30645
How to install (old) packages for Ubuntu 9.04?
112311
Removing blocks from configuration files?
138044
How can I stop the Software Updater from nagging me to restart?
6652
How to not install recommended and suggested packages?
145917
Removing broken packages on distro update (13.04 to 13.10)
9896
How do I get and modify the source code of packages installed through apt-get?
991
How can I fix apt error "W: Target Packages ... is configured multiple times"?
118831
How do I un-install / remove a click package
151509
How to fix error W: Target Packages (main/binary-amd64/Packages) is configured multiple times in my sources.list file?
65341
dpkg reports problems configuring huge list of python-related packages after any APT command
134563
How do I remove a broken software source?
76970
How to unload a Mathematica package?
111573
What's the best way to re-enable PPAs/repos after an upgrade?
99928
How to remove all i386 packages from Ubuntu 64bit?