Download
http://andrespadini.com.br/oracle/oratop.zip
Parâmetros
[oracle@bancora ~]$ ./oratop.RDBMS_12.1_LINUX_X64 -f -i 2 / as sysdba
http://eduardolegatti.blogspot.com.br/2015/12/um-pouco-sobre-o-oratop-utilitario-para.html
Executar o oratop nas versões 12.2 e superiores
[oracle@db ~]$ $ORACLE_HOME/suptools/oratop/oratop -f -i2 / AS SYSDBA