【CentOS】crontab定时和开机启动

【CentOS】定时crontab

依赖一个 crond 服务

systemctl start crond       启动服务
systemctl stop crond         停止服务
systemctl restart crond    重启服务
systemctl reload crond       重载配置文件
systemctl status crond       查看状态

 

crontab -e 编辑

crontab -l 查看

开机启动

crontab -e
添加 @reboot /ycx/bin/start.sh

 

定时删除前一天的nacos日志

0 1 * * * /usr/local/nacos/bin/cls.sh

脚本

d=`date -d '-1 day' +%F`
name="*${d}*"
sql="/back/mysql/SQL-$d.tgz"
nacos="/usr/local/nacos"
log1="${nacos}/bin/logs/${name}"
log2="${nacos}/logs/${name}"
rm -rf ${sql}
rm -rf ${log1}
rm -rf ${log2}

mysql备份数据

#!/bin/bash
DATE=`date +'%d'`
cd /data/back
mysqldump -uroot -p123456 -h127.0.0.1 --set-gtid-purged=off mydb > mydb.sql
if [ $? == 0 ];then
   tar zcf mydb$DATE.tgz mydb.sql
   /usr/local/openssh/bin/scp scp mydb$DATE.tgz root@192.168.1.100:/data/back 
fi