[Oracle DataBase Server 12.1 installation on Oracle Linux 6.7]: Final hot backup

$ mkdir -p /u02/oracle/oradata/${ORACLE_SID}/scripts

$ cd /u02/oracle/oradata/${ORACLE_SID}/scripts

$ vi rmanscript.rman

RUN {
    CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSET;
    BACKUP FULL DATABASE TAG "FULL_DATABASE" PLUS ARCHIVELOG TAG "FULL_DATABASE_ARCHIVELOGS";
    BACKUP CURRENT CONTROLFILE TAG "FULL_DATABASE_CONTROLFILE";
    BACKUP SPFILE TAG "FULL_DATABASE_SPFILE";
}

Check syntax

$ rman CHECKSYNTAX @rmanscript.rman

Execute script

$ rman target / @rmanscript.rman

Look to the list of backups

RMAN> rman target /

RMAN> list backup of database summary;

With next command i inform RMAN, what all backups except last it should mark as obsolete.

RMAN> CONFIGURE RETENTION POLICY TO REDUNDANCY 1;

Next command should remove all backups marked as obsolete without additional questions.

RMAN> delete noprompt obsolete;

RMAN> list backup of database summary;

RMAN>  quit