How to check WebLogic (WLS) server version

There four approaches to check WLSs version:

Here you go-

Approach-1:
 execute below command from the path: $WL_HOME/server/lib
 java -cp weblogic.jar weblogic.version

 Approach-2:
. $WL_HOME/server/bin/setWLSEnv.sh
java weblogic.version

Approach-3:
. $WL_HOME/server/bin/setWLSEnv.sh
  cd $MW_HOME/utils/bsu
./bsu.sh -prod_dir=$WL_HOME -status=applied -verbose -view

Approach-4:
WLS console->Servers->Admin Server->Monitoring