Cron 定时服务和数据库备份
一. 安装 Crontab
yum install vixie-cron
yum install crontabs二. 日常启停
systemctl start crond
systemctl stop crond
systemctl restart crond三. 创建备份脚本
#!/bin/bash
#This is a comment: The first line is required
db_user="xxx"
db_pass="xxx"
db_name="xxx"
path="/data/backup"
time="$(date +"%Y%m%d%H%M%S")"
mysqldump -u$db_user -p$db_pass $db_name > "$path/$db_name"_"$time.sql"四. 添加或修改定时任务
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