How to apply OPATCH in oracle weblogic?

 Steps to apply OPATCH in weblogic:

STEP 1: Download patch from Oracle Support portal. ...

STEP 2: Shut down WebLogic, Nodemanager and Managed Server. ...

STEP 3: Backup Weblogic Home. ...

STEP 4: Unzip Patch. ...

STEP 5 : Check opatch version. ...

STEP 6: Goto patch directory and apply the patch using opatch utility.

Check the OPATCH version using below command:

                export ORACLE_HOME=/u01/app/oracle/weblogic

                $ORACLE_HOME/OPatch/opatch lsinventory

Apply the OPATCH version using below command:

         - Go to JAVA_HOME under bin folder and execute the below command