Birmingham mumbai

Adding Personal Package Archives
On the Ubuntu platform, there also exists another type of repository, known as 
a 
Personal Package Archive
 (
PPA
). PPAs are essentially another form of APT 
repository, and you'll even interact with their packages with the 
apt
 command, as 
you would normally. PPAs are usually very small repositories, often including a 
single application that serves a single purpose. Think of PPAs as 
mini-repositories
. A 
PPA is common in situations where a vendor doesn't make their software available 
with their own repository and may only make their application available in the form 
of source code you would need to manually download, compile, and install. With 
the PPA platform, anyone can compile a package from source and easily make it 
available for others to download.
PPAs suffer from the same security concerns as regular repositories 
(you need to trust the vendor and so on), but are a bit worse 
considering that the software isn't audited at all. In addition, if 
the PPA was to ever go down, you'd stop getting security updates 
for the application you install from it. Only use PPAs when you 
absolutely need to.

---

Managing Software Packages