Users using separate package management programs for Debian and Ubuntu packages such as Aptitude can very easily list installed packages with or without dependencies. $ dpkg-query -l List Installed Packages using Aptitude It displays information about the package from the dpkg database as shown below. The dpkg-query command also works in the same way as an apt list.
$ apt list -installed | grep firefoxįirefox-locale-en/focal-updates,focal-security,now 100.0.2+build1-0ubuntu0.20.04.1 amd64 įirefox/focal-updates,focal-security,now 100.0.2+build1-0ubuntu0.20.04.1 amd64 For example to find whether the firefox is installed or not in your system you can use the below command. To find whether the specific application is installed or not, you can filter the output using the grep command along with the application name. $ apt list -installed | lessĮxecute the below command to save the output of installed packages using apt package manager in packages.txt. Since the package list is long, it is a good idea to pipe it with less command to show one page at a time.
It supports options for matching specific conditions such as listing installed packages using -installed, upgradeable -upgradeable or all available versions of packages using -all-versions.Įxecute the below command to list all the installed packages using the apt package manager. deb file installed packages can be easily listed using apt list command similar to dpkg -list those used to display a list of packages satisfying certain criteria.
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