Linux For Cynics One user's experiences with Linux


List Installed Packages in Debian or Ubuntu

In order to display the list of installed packages, use this command:

dpkg --get-selections

Chances are you have a lot of packages installed, so use grep to find something particular, for example, to see any packaged with the word "gnome" in their name:

dpkg --get-selections | grep gnome

Or, if you want to see how many packages you have installed, you can use the wc program:

dpkg --get-selections | wc

The first number is the number of lines dpkg output, and since there is one line per package, it is the number of packages installed.

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