1. Chapter 9 Managing Software
Ubuntu Unleashed
Chapter 9
Managing Software

2. Ubuntu Software Center
Graphical utility for package management
Easy search, 1 click installs
3 options in left pane
Get Software
Installed Software
History
Synaptic – works like “Programs and Features” in Windows
Allows you to mark for installation, re-installation, upgrade, and removal
Click apply

3. Staying Up-to-Date Software Updater
When run, it lists all available updates
Refresh by clicking “check”
Click “show details” to see the changes the update makes

4. Command Line Basics APT – why is it so cool? Before APT was RPM
RPM has “dependencies” meaning you couldn't just install (for instance) VLC, you'd have to first install any additional software that VLC needed to run, but before you could install that, you might need to install a handful of other software that the additional software needed, and on and on. Very time consuming
APT – properly handles dependencies – downloads and installs all dependency software
APT – Advanced Package Tool

5. Using apt-get sudo apt-get update Contacts all servers that it uses
Downloads a list of file updates
sudo apt-get upgrade
Lists available updates
Do you want to continue [Y/n] ?
sudo apt-get remove program_name
Will uninstall the named program

6. Finding Software apt-cache search program_name
Will find name of program & name of program in description
apt-cache -n search program_name
Will ignore program name in description

7. Tarballs When apt-get doesn't work
Something you're looking for doesn't exist in your repositories
You may find zipped software that will work for you
Will usually be in program_name.tar.gz (or tar.bz)
Use the command tar zxvf program_name.tar.gz -C ~/source
Now go to /source/program_name and look for instructions
Usually in a file called readme, install, or something similar
Follow instructions to install

8. DOL and CCBY