How to Install .deb Packages on Ubuntu and Debian

There are a couple of ways to install a local .deb file on Ubuntu and Debian-based Linux distributions. One common method is using the apt install command.

The only thing is, when you specify the file name, you need to prefix it with ./ to let the system know it’s a file in the current directory.

sudo apt install ./package-name.deb

Make sure to update your package list first by running the apt update command because .deb packages may have some dependencies needed to fetch them from the repositories.

Then, go to the folder where the .deb file is located and install it like this.

At the end, you might see this message: Download is performed unsandboxed as root as file. You can safely ignore it; it is not an error message. This message appears when the local directory is not owned by the root user.

Installing .deb Packages Using the gdebi Command

Another way to install .deb packages is using the gdebi command. If the command is not available, you can get it by installing the gdebi-core package.

sudo apt update
sudo apt install gdebi-core

Then, you can install any .deb package using the gdebi command.

sudo gdebi package-name.deb

Make sure you are in the folder where the .deb package is located in the terminal.

With these methods, you can easily install .deb files on your Ubuntu or Debian system using terminal.