1.定时任务制定$crontab-l#deletearchivelogbefore7days0002***sh/home/oracle/tkdba/del_arch_everyday.sh2.脚本内容脚本1：将包含$(date+%F)写到脚本中$cat/home/oracle/tkdba/del_arch_everyday.shsh/home/oracle/tkdba/del_arch.sh>>/home/oracle/t

定时任务：$crontab-l#deletearchivelogbefore7days0002***sh/home/oracle/tkdba/del_arch.sh>>/home/oracle/tkdba/logs/del_arch.log.$(date+%F)2>&1观察定时任务没有执行，临时文件没有清理。通过分析日志/var/log/cron，这里$(date+%F)未执行。Jul1523:30