Oracle RAC: Script that duplicates a database using a physical standby RAC as source

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This is a simple script that makes use of ASM and classic duplicate, although I guess it’s possible to use the standby DB for a duplicate from active database.
You can launch it everyday to align your test env at a point in time.

#!/bin/bash
if [ $USER != 'oracle' ] ; then
        echo "need to be oracle"
        exit 0
fi

. $HOME/set11
export ORACLE_SID=test1

srvctl stop database -d test -o immediate

## this is supposed to be a script that erase your ASM  from your old test dbfiles:
## it's as simple as running with the CORRECT ENV:
## asmcmd rm -rf \
##   +DATA/TEST/ONLINELOG
##   +DATA/TEST/DATAFILE
##   +DATA/TEST/CONTROLFILE
##   +DATA/TEST/TEMPFILE
##   +FRA/TEST/ONLINELOG
##   +FRA/TEST/CONTROLFILE

ssh grid@testsrv /shared/refresh_test/remove_test_files.sh

sqlplus / as sysdba < <EOF
        set echo on
        startup nomount
        alter system set cluster_database=false scope=spfile;
        shutdown immediate
        startup nomount
EOF

rman <<EOF
connect target sys/mystrongpassword@stdby
connect auxiliary /

duplicate database to 'test' until time "trunc(sysdate)+6/24";

EOF


sqlplus / as sysdba <<EOF
        set echo on
        alter system set cluster_database=true scope=spfile;
        shutdown immediate
        startup mount
        alter database noarchivelog;
        shutdown immediate
EOF


srvctl start database -d test

https://www.ludovicocaldara.net/dba/tag/standby/