备份日志简单脚本

    由于shell不熟，首先想到的是scp命令，把日志拷贝走之后，再rm -rf 删除日志，把这个脚本写到

crontab里就行了，结果开始就碰到问题，scp要提示输入密码，先解决这个问题

在服务器端，也就是要执行脚本的机器上输入：ssh-keygen -b 1024 -t rsa

出现下面的提示：[root@linux-test1 ~]# ssh-keygen -b 1024 -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/root/.ssh/id_rsa): 

Enter passphrase (empty for no passphrase): 

Enter same passphrase again: 

Your identification has been saved in /root/.ssh/id_rsa.

Your public key has been saved in /root/.ssh/id_rsa.pub.

The key fingerprint is:

07:8d:14:fd:e6:ab:d5:b8:85:62:7b:38:50:4a:c1:26 root@linux-test1

一路回车。。。。。   代表无证书密码。

 上述命令将生成私钥证书id_rsa和公钥证书id_rsa.pub，存放在用户家目录的.ssh子目录中。

将公钥证书id_rsa.pub复制到机器Server的root家目录的.ssh子目录中，同时将文件名更换为authorized_keys。

[root@linux-test1 ~]# scp -p .ssh/id_rsa.pub root@192.168.1.1:/root/.ssh/authorized_keys

[root@linux-test1 ~]# scp -p .ssh/id_rsa.pub root@192.168.1.1:/root/.ssh/authorized_keys

Address 192.168.1.1 maps to localhost, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!

root@10.10.1.11's password: 

id_rsa.pub                                                                                        100%  226     0.2KB/s   00:00  

再测试下，OK，直接就拷贝过去了。

vi 个脚本，

vi logs.sh

scp -r /usr/local/tomcat71/logs/ root@192.168.1.1:/home/logbackup/71

scp -r /usr/local/tomcat72/logs/ root@192.168.1.1:/home/logbackup/72

scp -r /usr/local/tomcat73/logs/ root@192.168.1.1:/home/logbackup/73

scp -r /usr/local/tomcat74/logs/ root@192.168.1.1:/home/logbackup/73

rm -rf /usr/local/tomcat71/logs/*

rm -rf /usr/local/tomcat72/logs/*

rm -rf /usr/local/tomcat73/logs/*

rm -rf /usr/local/tomcat74/logs/*

:wq               保存退出

我是保存4个tomcat的日志，写到crontab里

crontab -e

30 2 10 * * /bin/sh /data/scropts/log.sh

保存退出，测试/bin/sh /data/scropts/log.sh能不能执行

/bin/sh /data/scropts/log.sh