OPMNCTL (Oracle Process Management and Notification Server)
$ORACLE_AS_HOME/opmn/bin/opmnctl help
$ORACLE_AS_HOME/opmn/bin/opmnctl status help
$ORACLE_AS_HOME/opmn/bin/opmnctl status -l
$ORACLE_AS_HOME/opmn/bin/opmnctl stopall
$ORACLE_AS_HOME/opmn/bin/opmnctl startall
check AS version:
cat $ORACLE_AS_HOME/config/ias.properties | grep Version
$ORACLE_AS_HOME/OPatch/opatch lsinventory -detail