how to check package version before install
41054
How can I check the available version of a package in the repositories?
81981
How to test if package is installed?
99668
How can I tell what version of Linux I'm using?
38313
Checking if Ubuntu package contains desired update
123153
How to tell if a certain package exists in the apt repos?
112660
How to get list of installed packages with installation date?
81115
Find what packages are installed from a repository
135452
How do you see what packages are available for update
58032
How to install the previous version of a .deb package and pin it?
64083
How can I tell which release my org is running?
55386
Installed Package information, specifically Status
73749
How to find manually installed packages?
95336
Installing particular versions when repo has newer versions?
143891
How can I find out what version of Debian a particular version of Ubuntu is based on?
72178
Detect version of JavaScript
7101
How to find out which (not installed) Debian package a file belongs to?
113500
How can I find out which package installed a particular executable?