本地Linux备份服务器[Client]定期备份云服务器[Server]上的文件(上)

1.Client端执行如下命令，全程不需要输入任何东西

ssh-keygen -t rsa

2.拷贝Client上生成的公钥到服务器

scp -p /root/.ssh/id_rsa.pub root@250.250.250.250:/root/.ssh/

3.把client公钥信息保存到authorized_keys

cat id_rsa.pub >>authorized_keys

4.拷贝服务器文件到本地

scp -r root@250.250.250.250:/123.txt   /home/backup

5.编写shell脚本 

 

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echo "Hello world" time=$(date +"%Y-%m-%d") scp -r -C root@123.456.789.111:/wwwroot /home/backup/$time date >> /home/backup/res.log echo 'success' >> /home/backup/res.log echo '---------------------------' >> /home/backup/res.log SevenDays=$(date -d -7day +"%Y-%m-%d")  if [ -d /home/backup/$SevenDays ] then rm -rf /home/backup/$SevenDays date >> /home/backup/res.log echo 'delete success' >> /home/backup/res.log else echo "file not exist" echo "bash complete" fi

　　

6.定时任务执行shell脚本

0 18 * * * sh /root/down.sh