Como instalar pacotes no Ubuntu? [duplicado]

Question

Eu tentei instalar ubuntu-restricted-extras e vlc ,
 mas eu estou entendendo isso:

$ sudo apt-get install ubuntu-restricted-extras
[sudo] password for aashay: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package ubuntu-restricted-extras

$ sudo apt-get install vlc
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package vlc

    

Answer 1

Para instalar a versão mais recente do vlc:

sudo add-apt-repository ppa:djcj/vlc-stable

sudo apt-get update && sudo apt-get install vlc