Dpkg install commands

Also, it includes many programs like start-stop-daemon and update-alternatives. A program, i. The dpkg-dev Debian package includes the large build tools. In Debian, it is the Debian-based system and primary package management program. It is used for installing, building, removing, and managing several packages. For dpkg, aptitude is the main front end. Originally, dpkg was developed by Ian Murdock as a Shell script in January After that, the main section was rewritten by Ian Jackson in C in The dpkg name was formerly "Debian package" shortening.

This "status" file includes the installed software list on our current system. Also, there are no details about repositories within this database. It is short for Advanced Package Tool. It does not compromise with deb packages and directly works. However, it works with deb archive by a location described within a file, i.

For Debian, aptitude can be defined as a package manager text-based which is a front end for 'apt'. It enables all users to easily manage packages. It is a package manager graphical which makes it efficient for installing, upgrading, and uninstalling the package.

It is a package management tool menu-driven. Initially, it is used while the initial time install and substituted with aptitude now. It is helpful in merging and splitting huge files into small file chunks to be stored on smaller size media such as a floppy disk. In Ubuntu, the most common use of this command is the installation of a package.

In Debian or Ubuntu, we can install any deb package with the help of a command option, i. The package manager of dpkg is used to manage the packages in Debian and many derivatives such as Linux Mint and Ubuntu. By default, the dpkg package is installed on Debian and its derivatives could be used for installing, building, and removing. Ensure that we execute the above command through the similar directory in which the.

If we are alternatively executing the above command through any other directory, we need to specify the complete path to the. The dpkg command can install only the specified package without the dependencies. If we are installing any package which needs a few dependencies, we will get an error.

This error can look like below:. This command revolves around the broken package and also installs the needs dependencies expecting they are existing in the repository of our system.

If we no longer require service or program on our computer, there is no requirement to use it. We will require to specify the name of the installed package to remove an installed package rather than specifying the name of the. To search the package name, we can use the below command using a keyword corresponding to the name of the package:. Once we have detected the exact installed package name, we can uninstall or remove a service or program from our computer with the help of the --r or --remove option:.

The repositories of the dpkg command store every package that existed for installation on our Debian or Ubuntu Linux distribution. In case, you are installing a package which requires some dependencies, you will receive an error like this:.

Also, the dpkg will not install the package and will leave it in an unconfigurable and broken state. This command will fix the broken package and install the required dependencies assuming they are available in the system repository.

Although you can verify the package installation by searching it through the Ubuntu dash menu. If it is available there, that verifies the package is installed. However, the dpkg also allows you to verify the package installation. Simply type dpkg with —status or —s option to verify the package installation:. Once you no longer need an installed package, you can remove it using the dpkg command. For removing an installed package, you will need to mention the installed package name instead of mentioning the.

To find out the exact package name, you can use the following command with any keyword related to the package name:. Once you have found the exact name of the installed package, you can remove it using the following syntax using the —remove or —r option:. This you can do using the -i command line option. Extract the control files of the new package.

Run preinst script, if provided by the package. How to remove an already installed package using dpkg? This can be done using the -r command line option. Run prerm script 2. Remove the installed files 3. Run postrm script Q3. How to list all installed packages in the system? For this, you can use the -l command line option. How to make dpkg list contents of a package? This can be done using the —contents flag. How to just unpack a package using dpkg?

Run postinst script, if provided by the package. How to check if a package is installed or not? Use the -s command line option for this. How to print architecture of packages dpkg installs? This info can be accessed using the —print-architecture command line option.