Install local .deb files on Ubuntu with apt, dpkg, or gdebi. Fix dependency errors, inspect packages, install via GUI, and remove them safely.

A DEB file is a software package used by the Debian Linux distribution and its variants, such as Ubuntu. DEB files are used primarily to install or update Unix applications.

DEB File - What is a .deb file and how do I open it?

Debian (.deb) packages are the packages that are used in Ubuntu. You can install any .deb package in your system. .deb files can generally be installed from your file manager (Nautilus) merely by clicking on them, since file associations with the default installer is already set in Ubuntu.

How do I install a .deb file via the command line? - Ask Ubuntu

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The .deb format is the Debian binary package file format. It is understood since dpkg 0.93.76, and is generated by default since dpkg 1.2.0 and 1.1.1elf (i386/ELF builds). The format described here is used since Debian 0.93; details of the old format are described in deb-old(5). FORMAT top The file is an ar archive with a magic value of !<arch>.

This guide will explain everything you need to know about installing .deb files (a.k.a. debian package) properly on Debian, Ubuntu, Linux Mint, Pop!_OS, Elementary OS, MX Linux, and all other Debian-Based or in Ubuntu-Based Linux systems.