Removing Installation Done outside the Package Manager
31048
Keeping track of programs
152085
"Pin down" an automatically installed package so apt-get autoremove keeps it
76256
apt-get removed, how to reinstall it?
22305
Deleting external/auxiliary files?
63671
Getting Rid of Software Records for Software installed on an external disk?
134192
How to make sure I'm not using any proprietary software after installation?
65009
How to remove a repository?
92604
How can I install a package without root access?
104908
How to delete History of installed packages
135635
How to completely remove virtual packages?
30004
How can I uninstall software?
55539
How to remove a specific package from dependency list of another package?
26662
What is the correct way to completely remove an application?
88810
Removing an Ubuntu installation
118831
How do I un-install / remove a click package
25278
apt-get install with '-' (minus / hyphen) removes packages
136915
Remove path to uninstalled codeblocks