Lesson 2

Date: 1/25/2012
Linux installation and upgrade
Linux for Engineering and IT Applications


Advanced Package Tool (APT)

  • Configuration of /etc/apt/sources.list in our class 
    deb http://us.archive.ubuntu.com/ubuntu lucid main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid main restricted

deb http://us.archive.ubuntu.com/ubuntu lucid-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse

deb http://us.archive.ubuntu.com/ubuntu lucid-security main restricted universe multiverse
deb-src http://security.ubuntu.com/ubuntu lucid-security main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu lucid-security main restricted universe multiverse

  • After updating config files and periodically, run 
    apt-get update

  • Upgrade packages 
    apt-get upgrade

  • Search for string in known packages 
    apt-cache search ncurses
apt-cache search --names-only ncurses

  • Install a package 
    apt-get install libcurses-perl

  • Check if a package has been installed and can be updated 
    apt-cache policy libcurses-perl

  • Clean the cached deb packages after installations 
    apt-get autoclean

  • More instructions on APT are available in APT manual

    • Take me to the Course Website