How do I report a bug on Launchpad when I don't know which package it affects?
116
How do I find the package that provides a file?
35318
How do I list the default installed packages?
11680
Best guidelines for bug reporting?
115187
How do I avoid checking for updates for a specific module?
149428
How do I refresh the package list?
96810
Given a package name, how can I find out what will change if I install the package?
6440
Can I see why a package is installed?
79410
How do I find out which repository a package comes from?
88531
Is there a tool/website to compare package status in different Linux distributions?
87193
How to find out which dependency caused a particular library to be downloaded?
92739
E: The repository 'http://ppa.launchpad.net/jonathonf/python-3.6/ubuntu disco Release' does not have a Release file
58453
How do I look up exit codes for applications?
60932
How can I find the name of a Package?
16502
How can I know the dependencies of a certain package?
47335
Search Launchpad for PPAs matching software or package name?
123153
How to tell if a certain package exists in the apt repos?
9896
How do I get and modify the source code of packages installed through apt-get?