version: 11.2.0.4

DBCA response file sample: $ORACLE_HOME/assistants/dbca/dbca.rsp

dbca -silent -responseFile ./dbca.rsp

command line:
dbca -silent -createDatabase \
 -templateName General_Purpose.dbc \
 -gdbname orcl -sid orcl -responseFile NO_VALUE \
 -characterSet zhs16gbk \
 -sysPassword sys \
 -systemPassword sys \
 -automaticMemoryManagement false \
 -storageType FS \
 -ignorePreReqs

delete DB:
dbca -silent -deleteDatabase -sourceDB orcl -sysDBAUserName sys -sysDBAPassword sys