Search notes:

$ORACLE_HOME/bin/dbca

$ORACLE_HOME/bin/dbca is a shell script to run the database creation assistant. 
dbca                                         \
  -silent                                    \
  -createDatabase                            \
  -templateName              templ.dbc       \
  -gdbName                   db.tq84.xyz     \
  -sid                       ora19           \
  -databaseConfigType        SI              \
  -createAsContainerDatabase false           \
  -sysPassword               secretGarden20  \
  -systemPassword            secretGarden20  \
  -emConfiguration           DBEXPRESS       \
  -emExpressPort             5500            \
  -datafileDestination     "/u01/oradata"    \
  -recoveryAreaDestination "/u01/fra"        \
  -recoveryAreaSize          8192            \
  -characterSet              AL32UTF8        \
  -redoLogFileSize           100             \
  -enableArchive             true            \
  -useOMF true                               \
  -totalMemory               2048            \
  -createListener            LISTENER:1521

See also

DBCA

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