这篇文章主要介绍了dg如何实现删除备库已经应用的归档日志脚本，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

#!/bin/bash

#by ray

#2017-08-30

#v0.1

. ~/.bash_profile

#get sequence id that have applied.

[ -e /home/oracle/.applied_archivelog.txt ] && rm -f /home/oracle/.applied_archivelog.txt

sqlplus -s /nolog <<-RAY

conn / as sysdba

set heading off

set feedback off

set linesize 300

set pages 1000

col name for a100

spool /home/oracle/.applied_archivelog.txt

select sequence# from v\$archived_log where applied='YES' order by sequence#;

spool off

exit

RAY

[ -e /home/oracle/.applied_archivelog.txt ] && seq=`tail -2 /home/oracle/.applied_archivelog.txt | sed -n '1p'` || (echo "delete archive log failed!" >> /home/oracle/log/delete_archivelog.log ; exit 1)

logfile=/home/oracle/log/delete_archivelog_`date +%Y%m%d-%H%M%S`.log

rman target / log $logfile append <<EOF

delete noprompt archivelog until sequence ${seq};

crosscheck archivelog all;

delete noprompt expired archivelog all;

exit;

EOF

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