自动备份并删除旧日志

[root@BMS020 bak]# cat tarbakreq.sh
#!/bin/bash
set -x
. /etc/profile
#LOGFILE="/tmp/tarreq.log"
DIR="/opt/onlineorder/bak/"

cd $DIR
for i in `find . -type d -mtime +3 | grep -v gz`
do
    tar cvzf $i.tar.gz $i
    rm -rf $i
done
exit