#安装发信

yum -y install sendmail

#启动发信服务

service sendmail start

#发信

mail -s “[$(date +’%F %H:%M:%S’)] 标题” xxx@xxx.com < /opt/mail.txt

#启动crontab 定时执行

service crond start

#执行进入crontab vi

crontab -e

#增加 此为每5分钟执行一次脚本

SHELL=/bin/bash

PATH=/sbin:/bin:/usr/sbin:/usr/bin

*/5 * * * * /opt/tomcatre/tomcat.sh

#重启crontab

service crond restart

http://tool.lu/crontab/ 定时测试工具

#!/bin/sh

array=( table1 table2 )

echo “#!/bin/sh” >/opt/hb/hbdel.sh

echo “hbase shell <<EOF”>>/opt/hb/hbdel.sh

for data in ${array[@]}

do

echo delete_snapshot \’${data}”_”$(date -d “last month” +%Y%m)”05″\’>>/opt/hb/hbdel.sh

done

echo “EOF”>>/opt/hb/hbdel.sh

echo “echo [$(date +’%F %H:%M:%S’)] delete_snapshot >>/opt/hb/hbdel.log” >>/opt/hb/hbdel.sh

/opt/hb/hbdel.sh