@GaneshAnanth. Please do not bump posts if they are not answered promptly.
Please provide more information about your environment. Which OS you are using; is it 32- or 64-bit; do you plan to install Linux on a stand-alone, physical machine, or in a VM; which architecture does the host machine have (32- or 64-bit); how much memory does it have; how many CPU's / cores does it have.
I would start by downloading an ISO image of CentOS (which one depends on answers to the above questions) (I don't know why you'd want to install Oracle on Puppy Linux, or any other cut-down distribution. Stick to what Oracle supports, or at least a rebrand of a popular, fully supported distro.). You can easily find CentOS by searching the internet for it (
www.centos.org - The Community ENTerprise Operating System - pick a mirror near you (You're looking for the two DVD images (i.e. like
here))).
If you're installing into a VM, point the CD/DVD to the first ISO file (if you're installing it on a physical machine, you may need to burn the ISO to a DVD).
Make sure the machine has around 700MB of memory if you want to use the GUI installer. You'll need about 6GB of diskspace to comfortably install CentOS with the desktop option. The installation process itself is well described along the way. Don't worry about funny stuff like networks, and other software. Just install the OS first, then we can fix it up as you want.
So, it goes something like this:
- Create a virtual machine with around 700MB of memory and at least 6GB of disk space
- Connect the ISO image to the CD/DVD (if not asked when creating the VM)
- Start the VM. If all goes well, you should see "Welcome to CentOS 6.4"
- Select the first option ("Install or upgrade an existing system")
- On the next screen, when asked, you can Skip the media test
- On the next screen, click Next, then...
- Basic Storage Devices -> Click Next
- Choose "Yes, discard any data"
- Enter a hostname -> Click Next
- Pick a timezone -> Click Next
- Enter a root password -> Click Next
- Choose "Use All Space"
- Choose "Write changes to disk"
- Choose the type of installation - probably "Desktop" -> Click Next
- The installation will begin. Click Reboot when asked.
If you need to install some virtualisation software, there's various options. Oracle's VirtualBox is free - there may be others.
On the other hand, if all you really want is to learn shell scripting, or Oracle is already installed on a remote server, install Puppy using the instructions on their website.
@sMark31: Don't 'hijack' others threads. Please create a new one. Thanks.