How to add and delete a PPA in Ubuntu

In ubuntu, PPA represents a non-stable version to be released, and many PPA sources are usually added if you try to release it.

For more information about PPA, see https://help.launchpad.net/Packaging/PPA

Two commands are introduced to add and delete PPA sources.

Add a PPA Source

Sudo add-Apt-repository PPA: User/PPA-name

For example, add Cairo-dock to weekly update source.

Sudo add-Apt-repository PPA: Cairo-dock-team/weekly/Ubuntu

Delete a ppa Source

1. Source Directory: CD/etc/APT/sources. List. d/

2. You can check the source file and delete it.

Instance: the installation of the PPA is incorrect, so that each update source will be loaded and cannot be downloaded,

For example, the following error occurs when executing the following command: sudo apt-Get update:

Error http://ppa.launchpad.net lucid/main packages 404 not found

W: cannot download http://ppa.launchpad.net/wengxt/fctix-nightly/ubuntu/dists/lucid/main/binary-i386/Packages.gz 404 not found

Just delete it according to the above method.
Http://lightdm.lofter.com/post/459eb_6951a

It is very easy to add PPA for Versions later than ubuntu9.10 and 9.10. You only need one command:

Sudo add-Apt-repository PPA: User/PPA-name

Replace PPA: User/PPA-name with the name to be added.

Take Ubuntu-tweak as an example:
First, go to the home page of ubuntu PPA:

Https://launchpad.net/ubuntu/+ppas

Search for tweak. The first one is:

Open the PPA and find the PPA name, that is, the selected part in the figure:

Replace the PPA: User/PPA-name in the original command with the selected part.
Run the following command:

Sudo add-Apt-repository PPA: tualatrix/next
Sudo apt-Get update
Sudo apt-Get install Ubuntu-tweak

You can start to install Ubuntu-tweak.

Ubuntu add PPA2011-12-251 heat