Remove APT repositories disabled after upgrade to 18.04
65009
How to remove a repository?
108458
How to restore after accidentally apt-get remove python
76883
How can I remove gpg key that I added using apt-key add -?
22163
Programmatically disable apt unattended upgrades
104908
How to delete History of installed packages
119218
BRACKETS removed by upgrade to 17.04 and now I can't install it
99928
How to remove all i386 packages from Ubuntu 64bit?
67481
How to revert a do-release-upgrade?
21300
Is it safe to use the command apt-get autoremove in this particular scenario?
53588
How do remove the CD / DVD install as a source for apt-get packages when installing new features?
85426
how to permanently disable ubuntu updates & hide install updates button pic included
59017
How to repair Ubuntu installation after interrupted dist-upgrade without losing any custom settings?
130900
Disable automatic updates ubuntu 18.04
100700
How to remove the Unity Amazon package in 16.04?
115364
Deleted most of the packages using apt-get purge package\*; How can I get them back?
511
How to enable silent automatic updates for any repository?
59900
How to safely abort apt-get install?