the easiest way is the following:
1) download the file (pay attention to the architecture, i.e. x86 or amd64, and to the Ubuntu version, i.e. 10.04 or 12.04);
2) open a Terminal window and type:
Code:
cd Downloads
tar -xvzf filename
where filename is the name of the file you've just downloaded;
3) during the extraction process it will be created a new directory the name of whom is the same of the file you've downloaded, but without .tgz
4) when the extraction process will be completed, type:where dirname is the name of the directory;
5) finally, type:
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