linux下删除归档日志脚本

crontab -l
59 12 * * * /home/oracle/del_arch.sh &> /dev/null

cat del_arch.sh
#!/bin/bash
source /home/oracle/.bash_profile 
exec>>delarch`date +_%y%m%d%H`.log
rman target / << EOF
crosscheck archivelog all;
delete noprompt expired archivelog all;
delete noprompt obsolete;
delete noprompt archivelog until time 'sysdate-1';
exit;
EOF