How do I remove a PPA added via command-line? [duplicate]



To get a list of packages available in a PPA / repository enabled on your system (if the repository is disabled or not added on your system, it won't show up here), firstly install Synaptic if you haven't already:

sudo apt-get install synaptic

(or install

Synaptic GTK3


Then open Synaptic, select "Origin" on the bottom left, then select a PPA or repository on the left and it should list all packages in that PPA / repository for your Ubuntu version, both installed and not installed:

In the latest Synaptic built with GTK3, there are two entries for each PPA here, one that uses "/now" at the end, which displays the packages you've installed from a repository and another one which displays all the packages available in that repository.

Important: if the exact same package (including the package version) exists in two or more PPAs / repositories, it will only be listed for one repository entry in Synaptic. That's why I've...

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In an effort to install various apps in Ubuntu or other Linux distribution, we often add several PPA. Most of the times these PPAs are managed by a single developer as he might have created a certain app for personal amusement or as a hobby. Over times these PPAs might not be updated with latest version of operating system. This might create trouble when you try updating your OS. You may have other reasons as well for deleting or removing a PPA from the source list.

How to remove a PPA:

There are several ways to remove a PPA in Ubuntu. You can do it from Software Sources list, by removing the source files from the directory or the simplest way by using apt. There are different advantages of all of them. We’ll see all methods to delete a PPA in detail:

1. Remove a PPA from Software Sources via GUI:

This method is apt for those of you who prefer to use GUI over command line. While you are using Linux, I highly recommend that you use command line. But...

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Whether you’re using Linux on your desktop or a server, there are good tools that will scan your system for duplicate files and help you remove them to free up space. Solid graphical and command-line interfaces are both available.

Duplicate files are an unnecessary waste of disk space. After all, if you really need the same file in two different locations you could always set up a symbolic link or hard link, storing the data in only one location on disk.


FSlint is available in various Linux distributions’ software repositories, including Ubuntu, Debian, Fedora, and Red Hat. Just fire up your package manager and install the “fslint” package. This utility provides a convenient graphical interface by default, but it also includes command-line versions of its various functions. Like many Linux applications, the FSlint graphical interface is just a front-end that uses the FSlint commands underneath.

Don’t let that scare you away from using...

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How to install Y PPA Manager in Ubuntu Linux. Using Y PPA Manager on Ubuntu, add PPA manually, delete PPA ( remove repository in Ubuntu). Using PPA Manager, one can add Ubuntu PPAs graphically with Y PPA Manager. Not only this users can easily remove Ubuntu PPAs or Purge Ubuntu PPAs with Y PPA Manager.

Install Y PPA Manager

Y PPA Manager is a powerful PPA Manager tool. It features “Add PPA”, “Remove PPA” and “Purge PPA.” It can also be used to search all the available PPAs installed on the system. In short, Y PPA Manager is a powerful and must-have tool to workon PPAs in Ubuntu Linux.

Y PPA Manager can be installed on Ubuntu Linux Systems, via Wget Terminal command:

sudo add-apt-repository ppa:webupd8team/y-ppa-manager
sudo apt-get update
sudo apt-get install y-ppa-manager

Once installed, open Y PPA manager from Ubuntu Dash or Terminal.

Using Y PPA Manager

Open PPA Manager and you will see a list of...

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Question: I added a third-party PPA repository on my Ubuntu box some time ago. How can I remove the PPA repository?

A Personal Package Archives (PPA) is a Ubuntu way to allow independent developers and contributors to build and distribute any custom packages as a third-party APT repository via Launchpad. If you are a Ubuntu user, chances are that you have added some popular third-party PPA repositories to your Ubuntu system. If you want to remove any pre-configured PPA repository, here is how to do it.

Suppose you have a third-party PPA repository named "ppa:webapps/preview" added on your Ubuntu system, as follows.

$ sudo add-apt-repository ppa:webapps/preview

If you want to delete a PPA repository alone, run the following command.

$ sudo add-apt-repository --remove ppa:someppa/ppa

Note that the above command does not touch any packages installed or upgraded from the PPA itself.

If you want to delete a PPA repository as well as...

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Found one way to do it.

The trick is using two pinning clauses. The first to disallow ALL packages from the PPA and the second to select the ones you want.

So for the example above, I first add the ppa as usual:

$ sudo add-apt-repository ppa:webapps/preview ... $ sudo apt-get update ...

Now if i run apt-cache policy, it will show me that there’s a newer version of chromium-browser available and that it will install with an upgrade because it’s in the same priority (500) as my current chromium-browser.

$ sudo apt-cache policy chromium-browser chromium-browser: Installed: 18.0.1025.168~r134367-0ubuntu0.12.04.1 Candidate: 20.0.1132.47~r144678-0precise1+webapps3 Version table: 20.0.1132.47~r144678-0precise1+webapps3 0 500 precise/main amd64 Packages *** 18.0.1025.168~r134367-0ubuntu0.12.04.1 0 500 precise-updates/universe amd64 Packages 500...
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There are literally thousands of Ubuntu programs available to meet the needs of Ubuntu users. Many of these programs are stored in software archives commonly referred to as repositories. Repositories make it easy to install new software, while also providing a high level of security, since the software is thoroughly tested and built specifically for each version of Ubuntu.

Ubuntu distinguishes between software that is "free" and software that is not free. For details of Ubuntu's Free Software Philosophy please see here.

The four main repositories are:

Main - Canonical-supported free and open-source software.

Universe - Community-maintained free and open-source software.

Restricted - Proprietary drivers for devices.

Multiverse - Software restricted by copyright or legal issues.

The Ubuntu Install CDs contain software from the "Main" and "Restricted" repositories, so if you have no internet connection you can still install...

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Ubuntu 15.04 final beta is already out couple of weeks before. The final version of Ubuntu 15.04 will be released on coming April 23, 2015. Check the release notes for more details.

This comprehensive tutorial describes how can we enhance Ubuntu 15.04, and other older versions such as Ubuntu 14.10/14.04/13.10/13.04/12.10/12.04 etc., further for day to day activities. Also, this article will show you some interesting insights and ideas about what you can and should do after a successful installation of Ubuntu latest desktop version.

If you already use previous release of Ubuntu, and want to upgrade to the current latest version, then please refer the below link.

1. Preparing your Ubuntu desktop

1.1 Update System

The first and foremost thing to do is update/upgrade software repositories and make sure your systems contains latest versions of all software.

To do that, run:

sudo apt-get update && sudo apt-get upgrade

1.2 Install...

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Here we are, talking about installing stuff from PPAs, but we've never posted more about the PPAs themselves. So here's a short guide on how to use a Launchpad PPA in Ubuntu.

Launchpad PPAs ("Personal Package Archive") are repositories hosted on Launchpad which you can use to install (or upgrade) packages that are not available in the official Ubuntu repositories.

The packages are built on the Launchpad servers (not on the users' computers), for the specified Ubuntu version(s). Because the packages are built against a certain Ubuntu version, it's not recommended to use them in Debian for instance (they might not be compatible and can cause conflicts).

How to add a PPA

A PPA can be added either from the command line or using a GUI.

Add a PPA from the command line: I guess you already know that you can add a PPA using the "add-apt-repository" command, but in case you're new to PPAs, here's how to do it:

sudo add-apt-repository...
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The Wine Team finally announced the new stable Wine 1.8 release. The new Wine PPA maintained by has built the packages for Ubuntu 16.04, Ubuntu 15.10, Ubuntu 15.04, Ubuntu 14.04, Ubuntu 12.04, and their derivatives.

This release represents 17 months of development effort and around 13,000 individual changes. The main highlights are the implementation of DirectWrite and Direct2D, and the new Pulse Audio driver.

It also contains a lot of improvements across the board, as well as support for many new applications and games. See the release notes for a summary of the major changes.

I must apologize that the new PPA contains the latest dev release (so far it’s wine 1.9.0) packaged by official wine website


. Please read the bottom link about this built.

To get Wine 1.8 stable release, use the Ubuntu Wine Team PPA managed by Scott Ritchie and Maarten Lankhorst.

Install Wine 1.8 Stable from Ubuntu Wine Team...

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It's all very simple once you get the hang of it. I have run into problems here and there, but generally speaking, PPA's are the only way to get your software updated in Ubuntu between distro releases (don't get me into a rant about that). It's too much to explain here, so I will point you to some worthwhile documentation. But first, a few simple rules:

Know what you're installing. Most likely you'll use Launchpad for the majority of your PPA needs, but even so it can be dangerous to your computer. Usually the worry for me is not malicious intent, but conflicting packages. If package A requires a modified version of ffmpeg, and package B in a different repository requires a modified version of ffmpeg too, well, now there's a good chance you might not be able to watch videos, for example, with package A or B or at all.

Keep in mind that anyone can create a PPA, even you. Just because a person signs the Code of Conduct doesn't mean they know what they're doing. On...

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Launchpad ppa

On ubuntu, lots of software can be installed from the launchpad ppa repository. The repository url has to be added to the apt sources list on ubuntu and then the software can be installed from the package manager like synaptic. However for Debian there is no such ppa repository. But since ubuntu is based on Debian and uses the same apt based package management system, in many cases its possible to use the ubuntu ppa repositories in debian directly.

Debian 7

On debian 7 the add-apt-repository command is available and can be used to add any launchpad ppa repository in a single command.

# add-apt-repository 'deb quantal main'

The section titled 'Technical details about this PPA' will contain the deb urls for the given ppa repository.
The ppa shown above can be found at

Older debian versions

On older versions of...

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Note: All commands asked to be run must be run in the terminal, which can be opened by either Ctrl+Alt+T or searching for terminal in the dash.

Try running the following command and try to reinstall the software you were trying to install

sudo apt-get update

Backing up

Back up the following files:

/etc/apt/sources.list /var/lib/dpkg/status

To do so, use these commands

sudo cp /etc/apt/sources.list /etc/apt/sources.list.original


sudo cp /var/lib/dpkg/status /var/lib/dpkg/status.original

Clearing your apt-cache

apt keeps a cache of recently downloaded packages to save bandwidth when it is required to be installed. This can be counter-productive in some cases

Now, to clean it, you have two options

sudo apt-get clean

This will remove all cached packages belonging to the folder /var/cache/apt/archives/ and /var/cache/apt/archives/partial except the .lock files. This is recommended

sudo apt-get autoclean...
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Your sources.list really has duplicate entries.

First Let's see the correct form of a repository line or source line:

The correct format of repository source line is

For example, a repo line can be like this one

deb precise main

Here, it means, the repository is for binary packages, which are hosted in and this repository is for Ubuntu precise (12.04) and this repository contains the main (software which are officially supported by Canonical) component.

Type: The type can be deb and deb-src. deb means a binary repository where deb-src means a source repository

Location: location of the repository.

Dist-name: The distribution name of Ubuntu release. For Ubuntu 12.04 it is precise, for 11.10 it is oneiric.
You can visit the Ubuntu Wiki to view an updated list of Ubuntu releases and their code names.

Component: It can be...

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On Linux, you install software from package management applications like the Ubuntu Software Center. But not every piece of software is available in your Linux distribution’s software repositories.

You should only install software from sources you trust, just like on Windows. Much of this advice also applies to other Linux distributions, so we’ll note what’s Ubuntu-specific and what’s Linux-in-general.

DEB Package Files

Ubuntu software packages are in .deb file format. This includes packages you download from the Ubuntu Software Center and with apt-get — they’re all .deb files.

However, you can also install .deb packages from outside of Ubuntu’s software repositories. Many companies that produce software for Linux offer it in .deb format. For example, you can download .deb files for Google Chrome, Google Earth, Steam for Linux, Opera, and even Skype, from their official websites. Double-click the file and it will open in the Ubuntu Software...

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The rEFInd Boot Manager: Installing rEFInd

by Roderick W. Smith,

Originally written: 3/14/2012; last Web page update: 4/24/2016, referencing rEFInd 0.10.3

This Web page is provided free of charge and with no annoying outside ads; however, I did take time to prepare it, and Web hosting does cost money. If you find this Web page useful, please consider making a small donation to help keep this site up and running. Thanks!

This page is part of the documentation for the rEFInd boot manager. If a Web search has brought you here, you may want to start at the main page.

Don't be scared by the length of this page! Only portions of this page apply to any given user, and most people can install rEFInd from an RPM or Debian package in a matter of seconds or by using the refind-install script in minute or two.

Once you've obtained a rEFInd binary file, as described on the preceding page, you must install it to your computer's EFI System...

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PPA (Personal Package Archive) are used to include a specific software to your Ubuntu, Kubuntu or any other PPA compatible distro. The "safeness" of a PPA depends mostly on 3 things:

Who made the PPA - An official PPA from WINE or LibreOffice like ppa:libreoffice/ppa and a PPA that I created myself are not the same. You do not know me as a PPA maintainer, so the trust issue and safety is VERY low for me (Since I could have made a corrupted package, incompatible package or anything else bad), but for LibreOffice and the PPA they offer in their website, THAT gives a certain safety net to it. So depending on who made the PPA, how long he or she has been making and maintaining the PPA will influence a little bit on how safe the PPA is for you. PPA's as mentioned above in the comments are not certified by Canonical.

How many users have used the PPA - For example, I have a PPA from in my personal PPA. Would you trust ME with 10 users that confirm using...

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You can download the driver for your video card for Ubuntu 64bit from here. Assuming that you are using Ubuntu 64bit now. If you installed Ubuntu 32 bit, there is 331 version of the same driver for Ubuntu 32bit. Save your driver somewhere where you can easily access it, like your user home directory or inside a newly created nvidia directory in your user home directory.

To be able to install your nvidia driver you have to remove your previous video driver with this code in a terminal window:

sudo apt-get remove nvidia* && sudo apt-get autoremove

After you finish with this one, you should also blacklist the nouveau driver by editing this file with either:

gksudo gedit /etc/modprobe.d/blacklist-nouveau.conf


sudo nano /etc/modprobe.d/blacklist-nouveau.conf

…and add these lines at the end:

blacklist nouveau blacklist lbm-nouveau options nouveau modeset=0 alias nouveau off alias lbm-nouveau off

If, by any chance, there is no...

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Ubuntu has a lot of GUI-based methods for installing applications, but they take some time to search and find. Since the keyboard is usually faster than the mouse, managing your software via the command-line can be a real time-saver.


Linux manages software through packages, individual units of software that contain user interfaces, modules, and libraries. Most applications link several co-dependent packages together, and still others allow you to choose which packages to install and which to leave out at your own discretion. This can get confusing, so there’s a package manager at your disposal to help

Each Linux distribution has its own package management system. For our own near and dear Ubuntu, it’s the Advanced Packaging Tool. It has a family of commands that allows you to add repositories; search for, install, and remove packages; and even simulate upgrades and such. The commands are fairly easy to remember and use, so you’ll be managing your...

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