How do I list all packages outside of the enabled repositories?
138747
How to list installed packages in apt that are not backed by a repository?
157663
a command to list all packagas installed on the system and their installed files, how?
86921
How do I check if a package is installed on my server?
67802
How to get a list of files for a package I haven't installed yet?
74129
How to list dependent packages (reverse dependencies)?
149428
How do I refresh the package list?
69489
How do I figure out what package something is in without resorting to Google?
29175
Is there any command to list "local" packages? like in Synaptic GUI
9829
How do I show apt-get package management history via command line?
67561
How do I find what packages I've installed via terminal?
124931
Apport support for non ubuntu packages
85261
How do I find out which paths my (La)TeX installation checks looking for packages (on a Linux system)?
68037
Get package sources and repository link
15281
How to get a complete list of all applications installed?
9004
How to list files installed by a snap package?
99406
How to list user installed applications (not packages)?
34529
Files list file for package missing -- dpkg warning