Am new to ubunto and need splunk to be installed in this.
how to install a splunk in ubunto?..is there any unique version of splunk for ubunto is available to download?
Please share the steps or commands to use
Have you had a look at the download page?
There is a .deb version available for Splunk which will install on Ubuntu and there is a fully detailed installation manual on docs.splunk.com which I recommend you read as it gives you things to prepare and how to complete an install.
The bit related to .deb is here;
http://docs.splunk.com/Documentation/Splunk/4.3.2/Installation/InstallonLinux#Install_from_a_Debian_...
(But you should really start from the front page of the manual)