Whatever i type here, i assume that you have changed to that directory (if necessary) using “cd {path}” (w/o dowble quotes and brackets) command and u should always be logged in as root using “su -” (w/o double quotes) command.

There might be other ways to execute these files, but i have used these and found these only when i searched for the same over the net.

Also always read the README file, if provided with the package.

1) .sh (Script) files

Simply click on them to execute them, works sometimes.
or
Open Terminal
type ./scriptname.sh
or
Open Terminal
chmod -x scriptname.sh
sh ./scriptname.sh

2) .py (python) Files

Open Terminal
type python filename.py

3)Java Files

Open Terminal
type ./filename

4)tar.gz Files (Archives)

Simply extract them with an Extractor by clicking on them (as in windows)
or
Open Terminal
type tar xvzf file.tgzNote: To extract to some other folder, change over to that folder and then type
tar xvzf {path}.tgz
path of the file w/o brackets

5) Making an Install File from the package u downloaded

Extract the contents
Open Terminal
Type: ./configure
then: make
then: make install

6) .rpm Files

Right Click on them, and then selct Install with Yast
Note: Choosing Install Software never worked for me..

That should be enough!!