Dear All,
I know that how to uninstall the softwares those are installed by RPM packages..
But I want to know that how to install a software or applicaton which is been installed by a tar or tgz file
Kindly suggest me the step regarding the same

You mean you compiled them from source? If so, go into the directory where you downloaded the source, read the README and it should tell you how to uninstall it. Usually you just make uninstall from that directory.

How far did you get installing. When you compile from source these are the steps you do
1)./configure
2)make
3)make install

the last step is not completely nessary, the second step compiles the program and you can run it going ./[program_name]. The third step copies the compiled binaries into a directory defined in the configure file (usually /usr/bin or /usr/local/bin).

If you only got to the second step, you only need to delete the directory that the program is stored in. Else do the make uninstall. Reading the README or INSTALLATION normally tells you where and how it installs, or you can look in the configure file to see that information.

In future, I recommend using checkinstall (install it using your package manager). To use it, do the first two steps, but instead of doing make install you type checkinstall (in the program directory you just compiled the program). CheckInstall will create an RPM or deb and install it for you, then you can uninstall it using your package manager which is much cleaner.

http://asic-linux.com.mx/~izto/checkinstall/