How to List Dependencies of a Package in Ubuntu – Guide
Ubuntu’s package manager, Ubuntu Software Center, downloads several packages when you install traditional applications. However, this is only true for traditional applications.
By knowing which additional dependencies are downloaded during an installation, you can better manage your system and ensure that only the necessary packages are installed. This way, you have full control over the packages installed on your system.
How to check a package’s dependencies in Ubuntu
In Ubuntu, there are a few ways to check for package dependencies. One way is to use the apt-get command. The apt-get command can be used to search for and install packages. The apt-get command can also be used to remove packages from the system. The apt-get command can be used in two ways: as a normal user and as a sudo user. As a normal user, you can use the following command:
apt-get install -y build-essential libssl1.0.0 libtls1.2 libcurl4-openssl
As a sudo user, you can use the following command:
sudo aptitude update sudo aptitude install curl build-essential libssl1.0.0 libtls1.2 libcurl4-openssl
What are package dependencies?
Linux applications depend on a number of support packages to function correctly. For example, if you want to download VLC media player on Ubuntu, APT will install some additional packages like libc6 and gcc, in addition to the main “vlc” package. A dependency can also have other packages as its dependencies, thus forming a hierarchical structure.
Since Linux packages are typically interdependent, almost all software requires additional packages that must be installed on a system. ..
Although package managers like APT automate the management and installation of such dependencies, errors do occur when you try to build the package manually from source. However, you can resolve these errors simply by installing the required dependency on your system using the apt install command.
How to Check package dependencies on Linux
To list the dependencies of a package in Ubuntu:
- Type “apt-get list” to see a list of all the package’s dependencies.
- Type “apt-get install” to install the package’s dependencies.
There are a few different ways to use the APT Package Manager, but the most common way is to use it to install and manage software packages. This guide will show you how to use the APT Package Manager to install and manage software packages.
apt-get list This will list all the dependencies for the package “package” and print them out.
sudo apt-get depends on package name ..
sudo apt-get install rhythmbox To check the dependencies of the rhythmbox package: sudo apt-get install -y libao2-0 libvorbis0a libsamplerate0 libxmu6 ..
sudo apt-get install rhythmbox sudo apt-get remove rhythmbox ..
Rhythmbox is a music player that comes pre-installed on many Linux distributions, and it’s often recommended as a good starting point for new Linux users. In addition to the list of dependencies, the output will also include recommended and suggested packages that you can install along with rhythmbox. ..
The apt-cache command can be used to get the list of installed packages.
sudo apt-cache depends on rhythmbox
To see what packages a dependency is required for, use the show method. This will list all the packages that the dependency is required for, as well as any optional dependencies that are needed. ..
sudo apt show rhythmbox | grep “playlists”
rhythmbox The rhythmbox package contains the programs used to play music.
Listing dependencies using dpkg
If you have downloaded a DEB package on your system and want to know which dependencies will be installed along with the package, you can use the -I (uppercase I, not lowercase L) or -info flag with the command. ..
sudo apt-get install /path/to/package.deb
The information below is about the package “package.deb”. Package: package.deb Version: 1.0.0-1ubuntu1 (precise) Section: main Architecture: all amd64 arm64 armel armhf i386 mips mipsel powerpc ppc64el s390x Size: 9,811 bytes Package Information deb http://ppa.launchpad.net/ubuntu-core/main/ubuntu xenial main contrib non-free deb-src http://ppa.launchpad.net/ubuntu-core/main/ubuntu xenial main contrib non-free Signing key: 1024R/B5F2DFCE (What is this?) Fingerprint: B5F2DFCE ..
Where /path/to/package.deb is the absolute or relative path to the deb file, the following will work: dpkg -i package.deb
The output will display the package size, font and other useful information along with the list of dependencies.
dpkg -s libc6
To get the list of installed packages and their dependencies, use the dpkg command with the -l flag. For example: dpkg -l | grep libc6 ..
sudo apt-get install firefox
To get more verbose output when using the apt-rdepends utility, you can use the -v option. ..
sudo apt install apt-utils sudo apt install libapt-pkg4.0-dev ..
sudo apt-get install
apt-rdepends is a tool that helps to determine which applications require the latest version of the video codecs. This can be helpful if you want to upgrade your video software or if you need to troubleshoot a problem with an application.
sudo apt-get install ubuntu-dev-tools The reverse-depends command can be used to extract all the reverse dependencies of a package.
Ubuntu’s development tools are not installed by default. To install them, use the following command:
grep -v ‘^.*$’
Reverting a package with the command “pkg-revert” requires the use of two flags: “–with-pkgname=” and “–with-pkgdir=”. The first flag tells the pkg-revert tool which package to revert from, and the second tells it where to find that package’s dependencies.
You can add various flags to the mentioned command to modify the output. Here is a list of the most useful options. -a, –all Show all files in the directory, not just those matching the given pattern. -c, –count Show how many files matched the given pattern. -d, –depth=N Show only files that are at least N levels below the given directory. -f, –file=FILE Match files based on their filename rather than their path. -i, –ignore=PATTERN Do not show files that match PATTERN. -o, –output=FILE ..
-R: This is a list of direct dependencies for the R programming language. No recommended packages are included.
Please include a suggested package for the reader.
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In case you can’t find the tool or need help using it, use the –help or -h flag to get help from the command line.
To get a list of dependencies that your application requires, you can use a dummy installation or removal. ..
Mock install of a specific package can list all dependencies that are not currently installed on the system.
php require ‘package’
sudo apt install -sph
The output will contain a section “The following additional packages will be installed.” All package names listed below are dependencies that were not found on your system.hpd: .lp-h.sss) s: .me: ls: ..
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Final note
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