Debian Repo being used on Ubuntu and cannot be removed
6809
How do I fix the GPG error "NO_PUBKEY"?
65612
How to delete/remove manually apt added repositories?
124717
Debian unstable chroot security issues
152795
Is there Ubuntu's analogue of snapshot.debian.org?
64970
How to exclude a package from apt-get autoremove?
64127
How can I prevent installation of a specific package on Linux Mint?
70781
How can I remove Gnome Desktop Environment without messing Unity DE? (Ubuntu 16.04)
21620
How can I Remove .DS_Store files from a Git repository?
99928
How to remove all i386 packages from Ubuntu 64bit?
102747
Debian 9, APT, and "GPG error: ... InRelease: The following signatures were invalid:"
129138
Different Debian versions from two different commands
86930
Completely remove files from Git repo and remote on GitHub
23236
Manually Installed new Python to /usr/bin, how to get Repo version back?
111153
How do I remove/uninstall a program that I have complied from source?
109624
How do I tell apt to never upgrade a particular package?
49337
How to add repository from shell in Debian?
117457
Is there a way to permanently exclude the kernel from updates?