Possible Duplicate:
How to install a .tar.gz file?
I download for example flash player and eclipse. they are in tar.gz format. where i need to unpack them? is there some directory where all software is installed? My firefox will see flash, or i need to do something to make it work?
Both eclipse and flash are available in the repositories.
If you use the Ubuntu Software Center program or synaptic (for older versions of Ubuntu) to install the software, it will take care of it all for you, and will make sure the software is kept up to date. It is recommended to use them unless the software you need is unavailable.
