RMAN Shell Script to backup to the disk

#!/bin/bash

BACKUP_DATE=$(date +%Y%m%d_%H%M%S)

BACKUP_DIR="/oracle/FRA/FULL_BKP_20250826"

ORACLE_HOME=/oracle/app/oracle/product/19.0.0/dbhome_1

ORACLE_SID=MYDB

export ORACLE_HOME ORACLE_SID RMAN_DIR PATH=$ORACLE_HOME/bin:$PATH

rman target / log=${BACKUP_DIR}/backup_${BACKUP_DATE}.log <<EOF

RUN {

  ALLOCATE CHANNEL C1 TYPE DISK FORMAT '${BACKUP_DIR}/%U';

  CONFIGURE COMPRESSION ALGORITHM 'MEDIUM';

  BACKUP TABLESPACE USERS FORMAT '${BACKUP_DIR}/tablespace_%U.bkp';

  BACKUP CURRENT CONTROLFILE FORMAT '${BACKUP_DIR}/control_before_patch_%U.ctl';

  #BACKUP AS COMPRESSED BACKUPSET DATABASE FORMAT '${BACKUP_DIR}/db_full__before_patch_%U.bkp';

  #BACKUP ARCHIVELOG ALL FORMAT '${BACKUP_DIR}/archive__before_patch_%U.bkp';

  RELEASE CHANNEL C1;

}

EOF