How to install on linux?
 

My brother installed linux for me. But how to install programs on linux? i have Gentoo and Kde... Please help me..

The easiest way is to use your distribution's package management system. For Gentoo, this is called Portage. Gentoo has very good documentation, so I'd suggest reading it. See this page - there are several Portage related links on there.

learning the package manager is definitely the first step (#1).

What happens next depends very much on what software you want vs. what is available using your particular distro.

When you discover something that you cannot get thru your package manager (from a repository), then there are three more levels:

2. Find a package in the right format, download it, and feed it to your package manager.

3. Download the SW as a pre-compilied binary and install it using a script that will be supplied with it.

4. Download the SW source code and install from that.

Methods 1 and 2 are pretty much automatic

For # 3 and 4, there will typically be a "README" file to give you the details on how to install.

For 2, 3 and 4, you will often get the file in a *tar.gz or similar compressed format. In all 3 cases, you will have to extract the files before proceding. For *tar.gz, you would run "tar -xvf <filename>"