Flexagon has developed a set of scripts to greatly simplify the installation of WebLogic 12.1.3 (along with ADF Runtime) on either unix or windows operating systems.
These scripts are available in the FlexDeploy Community Edition download, under the /WebLogic/12.1.3 install sub-folder, or on our support site for customers with active FlexDeploy subscriptions.
Unzip the WebLogic12.1.3-install-scripts.zip file to a temporary file location on your target server, and refer to Unix_install.txt or Windows_install.txt for instructions.