30 October 2014

Ubuntu Linux - How to install software?

https://help.ubuntu.com/12.04/serverguide/installing-from-cd.html

Installing the package groups is accomplished using the tasksel utility. One of the important differences between Ubuntu (or Debian) and other GNU/Linux distribution is that, when installed, a package is also configured to reasonable defaults, eventually prompting you for additional required information. Likewise, when installing a task, the packages are not only installed, but also configured to provided a fully integrated service.
Once the installation process has finished you can view a list of available tasks by entering the following from a terminal prompt:
 
tasksel --list-tasks
The output will list tasks from other Ubuntu based distributions such as Kubuntu and Edubuntu. Note that you can also invoke the tasksel command by itself, which will bring up a menu of the different tasks available.
You can view a list of which packages are installed with each task using the --task-packages option. For example, to list the packages installed with the DNS Server task enter the following:
 
tasksel --task-packages dns-server
The output of the command should list:
 
bind9-doc 
bind9utils 
bind9
If you did not install one of the tasks during the installation process, but for example you decide to make your new LAMP server a DNS server as well, simply insert the installation CD and from a terminal:
 
sudo tasksel install dns-server

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