How do I find if a package is installed by default for each Ubuntu release?
35318
How do I list the default installed packages?
67561
How do I find what packages I've installed via terminal?
157663
a command to list all packagas installed on the system and their installed files, how?
80816
Generate a log of all the installs on a system (whether apt-get/yum/pip/npm/...)
53498
How do I find packages to install via apt-get
87252
Finding how many times a given package has been installed
69489
How do I figure out what package something is in without resorting to Google?
75824
Seeing apt-get changelogs for to-be-upgraded packages
113500
How can I find out which package installed a particular executable?
38313
Checking if Ubuntu package contains desired update
24368
How can I list all files which have been installed by an APT package?
64083
How can I tell which release my org is running?
66101
How to check which package created a user?
138747
How to list installed packages in apt that are not backed by a repository?
115187
How do I avoid checking for updates for a specific module?
15828
How to find which package provides a file?
151411
How can I know if a virtual package is "installed" on a Debian system?