SHELL KBASH with Oracle Edition-Based Redefinition

hi everyone, i'm learning on Oracle 11g and my team have asked me for edition-based redifinition, have you the script? or another idea?

Thanks

Seems that there's plenty of information available about this (i.e. like here) if you're willing to Google it.

Did you have a specific question about it, or something you don't understand?

thanks for reply, i've visited this link and i'll want to know that i can to have the possibility for use script with this edition based? i've tried with this script like sample:

#!/bin/bash
UTENTE="$1"
PASSW="$2"
RETVAL='sqlplus "$UTENTE"/"$PASSW"<<EOF
BEGIN
  DBMS_SERVICE.modify_service(
    service_name   => 'oc11g.local',
    edition        => null,
    modify_edition => TRUE);
END;
/
EXIT;
EOF'

$RETVAL

but work only to connect, not on change edition....