List all the installed packages in linux

How do I see what packages are installed on Ubuntu Linux?

I am a new Ubuntu Linux server user. My server hosted at Google cloud VM. How do I see what packages are installed on Ubuntu Linux?

Introduction: Ubuntu Linux is an open source operating system based upon the Linux kernel and GNU command line utilities. Ubuntu Linux is extremely popular among new Linux users as well as developers all around the globe. This page shows how to list all installed packages with apt command or apt-get command on Ubuntu Linux.

Tutorial details
Difficulty level	Easy
Root privileges	Yes
Requirements	Debian or Ubuntu Linux
Est. reading time	5 minutes

You need to use the apt or apt-get or dpkg command to list all installed packages on an Ubuntu Linux server from the bash shell prompt.

How do I see what packages are installed on Ubuntu Linux?

The procedure to list what packages are installed on Ubuntu:

1. Open the terminal application or log in to the remote server using ssh (e.g. ssh user @ sever-name )
2. Run command apt list —installed to list all installed packages on Ubuntu
3. To display a list of packages satisfying certain criteria such as show matching apache2 packages, run apt list apache

Let us see some examples about how to list installed packages on Ubuntu and Debian Linux operating systems.

apt list installed packages

Let us list all software packages on Ubuntu Linux available for us:
$ apt list

You might want to use the grep command/egrep command to filter out:
$ apt list | grep nginx
OR
$ apt list | more
However, you may see message on screen that read as follows:

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

To avoid this message use the dpkg command as follows:
$ dpkg —list | grep nginx
$ dpkg —list | more

List all installed packages only

The apt command displays both installed and packages available to install. What if you want to list currently installed software only? Fear not, pass the option to the apt command:
$ apt list —installed

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How to list or find out if a specific package installed or not

Run package policy as follows:
$ apt list -a pkgNameHere
Is sudo package installed?
$ apt list -a sudo
Is sudo package mariadb-server?
$ apt list -a mariadb-server

Ubuntu list installed packages

It is also possible to list installed packages matching given pattern. The syntax is:
dpkg -l pattern
dpkg —list pattern
apt list pattern
apt list —installed pattern
For example:
dpkg —list ‘x*’
Sample outputs:

• ii – Indicates that package named xauth installed.
• un – Indicates that package not installed or in Unknown status.

Listing installed packages sorted by installation date and time

There is no simple command, but we can use the combination of zgrep and other commands as follows. Let us count it:

Total installed packages on nixcraft-wks01 : 6433
List them:
zgrep » installed » /var/log/dpkg.log*

Please note that zgrep will search possibly compressed files for a regular expression as those log files are compressed by system. Hence, we need to use various z commands on Linux. See “How to find out when Debian or Ubuntu package installed or updated” for more info.

Conclusion

You learned how to list both installed and uninstalled packages on an Ubuntu Linux server or desktop using the CLI method. See the following man pages using the man command:
man apt
man apt-get
man dpkg

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How to List Installed Packages on Ubuntu and Debian-based Linux Distributions

Last updated August 23, 2021 By Abhishek Prakash 20 Comments

So you installed Ubuntu and started using it extensively. Somewhere down the line, you are bound to lose the track of the software that you had installed over the time .

That’s perfectly normal. No one expects you to remember all the packages installed on your system. But the question arises, how to know what packages have been installed? How to see the installed packages?

To list all the installed packages using apt:

apt list –installed

Read the rest of the tutorial to know more about other ways and some more tips to fine tune your search for installed packages.

List installed packages in Ubuntu and Debian

If you use apt command extensively, you would probably expect a command like apt list installed packages. You are not entirely wrong here.

While apt-get command doesn’t have a straightforward option like apt-get list installed packages, apt has a command for this.

This will list all the packages that have been installed using apt. It will also list the packages that were installed as a dependency. Which means that not only you’ll have the applications you installed, you’ll also have a huge list of libraries and other packages that you didn’t install directly.

Check whether a specific package is installed in Ubuntu

Since the list of installed packages is a huge one, it would be a better idea to use grep and filter the output for a certain package.

A better way is to use this command:

Both q options are for quiet mode. And this way, it only looks for programs that are installed.

Note that the above method also lists the applications installed with .deb files. That’s cool, isn’t it?

Other ways to check installed packages in Ubuntu/Debian

If you have read my apt vs apt-get comparison article, you probably already know that both apt and apt-get basically use dpkg . This means you can use dpkg command to list all the installed packages in Debian.

You can filter the output with grep again to search for a specific package.

So far, you have dealt with applications installed with Debian’s package manager. What about Snap and Flatpak applications? How to list them because they are not accessible with apt and dpkg?

To show all the Snap packages installed on your system, use this command:

Snap list also indicates which applications are from a verified publisher with a green tick.

To list all the Flatpak packages installed on your system, use this:

Let me summarize it for you.

To list packages using apt command:

apt list –installed

To list packages using dpkg command:

dpkg -query -l

To list Snap packages installed on your system:

snap list

To list Flatpak packages installed on your system:

flatpak list

List the recently installed packages

So far you saw the list of installed packages in alphabetical order. What if you want to see the packages that have been installed recently?

Thankfully, a Linux system keeps a log of everything that happens in your system. You can refer to the logs to see the recently installed packages.

There are a couple of ways to do this. You can either use the dpkg command’s log or the apt command’s log.

You’ll have to use grep command to filter the result to list the installed packages only.

This will list all the packages including the dependencies that were installed recently on your system along with the time of installation.

You can also use the history of apt command. This will show only the programs that you installed using apt command. It won’t show the dependencies installed with it, though the details are present in the logs. Sometimes, you just want to see that, right?

The output should be something like this:

The history log of apt is quite useful because it shows the time when the apt command was run, the user who ran the command and the packages that were installed by a command.

Bonus Tip: Show installed applications in Software Center

If you are not comfortable with the terminal and the commands, you still has a way to see the applications installed on your system.

You can open the Software Center and click on the Installed tab. You’ll see the list of applications that have been installed on your system.

It won’t show the libraries and other command line stuff though but perhaps you don’t want to see that as you are more GUI centric. Otherwise, you can always use the Synaptic Package Manager.

That’s it

I hope this quick little tutorial helped you to see the list of installed packages on Ubuntu and Debian based distributions.

If you have questions or suggestions to improve this article, please leave a comment below.

Like what you read? Please share it with others.

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How To List Installed Packages In Linux

You could have installed many applications on your Linux system. This brief guide explains how to list all installed packages in Linux from command line with examples.

The commands to display all installed packages varies depending on the type of the package manager you use. I have included example commands for all popular package managers.

1. Display installed packages using pacman in Arch Linux

Pacman is the default package manager for Arch Linux and its derivatives like EndeavourOS and Manjaro Linux.

To list all installed packages using pacman in Arch Linux and its variants, run:

Sample output:

List installed packages using Pacman in Arch Linux

If you want to view the output page by page, pipe the output to more command like below:

To list only the explicitly installed packages and versions:

To list only the total number of installed packages in Arch Linux, pipe the pacman output to wc command:

As you can see in the above output, I have installed 134 packages in my Arch Linux system.

You can also export all installed packages to a text file and install them later on a freshly installed Arch Linux. For details, check the following guide:

2. Get list of installed packages using apk command in Alpine Linux

Apk, short for Alpine Package Manager, is the default package manager for Alpine Linux.

The command to view the list of installed packages in Alpine Linux is:

View installed packages using apk command in Alpine Linux

If you want to view the list of installed packages with along with version number and package description, use -vv flag like below:

Sample output:

To list only the total number of all installed packages in Alpine Linux, pipe the apk info output to wc command like below:

3. Find installed packages using apt command in Debian, Ubuntu

Apt provides a high-level command line interface for the package management system in Debian, Ubuntu and other Debian-based systems.

To display the list of installed packages in Debian, Ubuntu, Linux Mint and other DEB-based systems, run:

Sample output:

Display installed packages using apt command in Debian, Ubuntu

Display the total number of installed packages in Debian-based systems, pipe the output of apt command to wc command as shown below:

4. Using dpkg command in Debian, Ubuntu

Dpkg is a command line tool to install, build, remove and manage Debian packages.

To list all installed packages with versions and details using dpkg command, run:

Get installed packages using dpkg command

Alternatively, you can use dpkg-query command to list all installed Debian packages.

Get all installed Debian packages using dpkg-query command

List only the total number of installed packages in Debian-based systems:

5. Using yum command in RHEL, Fedora, CentOS

Yum, stands for Yellowdog Updater, Modified, is the command line management utility to install and manage packages in Red-hat based systems. It is now replaced with dnf in the recent versions of RHEL and CentOS.

To find the list of installed packages in Fedora, RHEL and its clones like CentOS, run:

List installed packages using yum command

List only the total number of installed packages using yum and wc commands:

6. Using dnf command in in RHEL, Fedora, CentOS

DNF is the next generation version of YUM and it has been the default package manager since Fedora 22, RHEL 8 and CentOS 8. DNF usage is same as Yum.

To find the list of installed packages in RHEL, Fedora, CentOS using dnf , run:

If you want to display only the total number of packages using dnf command, run:

7. Using zypper command in openSUSE

Zypper is the default command line package manager to install and manage packages in SUSE and openSUSE.

To list installed packages in openSUSE using zypper , run:

8. Using rpm command

RPM command, stands for Red Hat Package Manager, is used to install and manage applications from command line in Redhat-based systems.

To list every RPM package installed on your system, run:

To view the output page by page, pipe the output to more command:

You can also all installed packages with the latest ones at the top using —last flag like below:

The following two are universal methods. You can use these commands on any systems that have installed with either snap or flatpak tools.

9. List packages installed with snap

Snap is a software deployment and package management system developed by Canonical.

To list all snap applications installed on your system, run:

Sample output:

List installed snap applications in Linux

10. List installed packages using flatpak

Flatpak is a platform-independent package management system to build, install and run sandboxed desktop applications and runtimes on Linux.

To list all installed flatpak applications in Linux, run:

Sample output:

List packages installed with flatpak in Linux

Please note that the above command will list only the packages that are exclusively installed with flatpak application.

For more details, refer the man pages of the respective commands.

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