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.
Often, we can end up getting packages old versions for any program if new versions have been released already because these packages are locally stored.
It causes a requirement for a way to update our repositories. Another option, i. It will analyze the repositories online and download each updated package to our local repository. We might wish to list all the installed packages on our system before installing any new package.
For doing so, we can use this dpkg command using the --l or --list option below:. Although we can verify the installation of the package by searching it from the dash menu of Ubuntu.
If it is present there, that will verify the package installation. However, the dpkg command also permits us to verify the installation of the package. We can simply enter dpkg with --s or --status for verifying the package installation:.
We can purge the package. It will uninstall the software and remove each configuration file rather than leaving them behind its the help of the -P option. We can use the -s option for quickly checking whether the package is installed successfully or not. We can unpack the. We can repackage everything within the. Probably, we will need to opt for a command, i.
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Alternatively, there are several utilites in Debian which perform this task; check this page for a description. I'll mention two of them, apt-file and dlocate. Below you will find more detailed guide. Search is performed by dlocate -S file. Also you can search packages online using packages. Read data from repositories this works also without sudo but creates user's cache then; with sudo the cache is system-wide :.
Perform search. In this example we want to know in which package xrandr executable is:. It lists many packages with unxrandr , lxrandr. Not very useful in our case. More clever search:. The first result doesn't look like executable, the second one does. We can investigate further. On my Ubuntu at least, both seem to be in the dpkg package, so no real advantage to any specific one To use dpkg to find the installed DEB package that provides a file, run it with the -S or --search flag, followed by the filename or pattern you want to see to which package it belongs, like this: dpkg -S filename For example, to find out to which package the cairo.
You can enter the full path of the file to get only the package that contains that specific file. For both, you'll also find options to find the packages that contain files named exactly like your input keyword, packages ending with the keyword, or packages that contains files whose names contain the keyword.
Please post civil and on-topic comments. Commenting guidelines. Recent Posts. Editor's Picks. The result will show the package name. Then you can use your apt command to install the respective package. In this tutorial, we learned how to find what package a file belongs in Linux. Thanks for reading, please provide your feedback and suggestions.
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