How to get a list of packages installed locally ?
I’d like to output a list of all installed packages into a text file so that I can review it and
bulk-install on another system. How would I do this?
Ubuntu 14.04 and above
The apt tool on Ubuntu 14.04 and above makes this very easy.
apt list --installed
To get a list of packages installed locally do this in your terminal:
dpkg --get-selections | grep -v deinstall
(The -v tag “inverts” grep to return non-matching lines).
To get a list of a specific package installed:
dpkg --get-selections | grep postgres
To save that list to a text file called packages on your desktop do this in your terminal:
dpkg --get-selections | grep -v deinstall > ~/Desktop/packages
Alternatively, simply use
(you don’t need to run any of these commands as the superuser, so no sudo or any other variants necessary here)